Splinter Hemorrhages

Patient Tools

Read, save, and share this guide

Use these quick tools to make this medical article easier to read, print, save, or share with a family member.

On this page4 sections

Article Summary

Splinter hemorrhages are small, linear, and red or brown lines that occur beneath the nails of the fingers or toes. They are usually less than 1 cm in length and can be a sign of underlying medical conditions, including serious ones like endocarditis and bacterial infections. There are several types of splinter hemorrhages, each with different causes and implications. Traumatic Splinter Hemorrhages: These are the...

Key Takeaways

  • This article explains Causes in simple medical language.
  • This article explains Symptoms in simple medical language.
  • This article explains Diagnosis in simple medical language.
  • This article explains Treatment in simple medical language.
Before reading

RX Patient Tools

Use these quick guides before reading the article, or return to them when you need help preparing questions for a doctor.

Start here Choose the right pathway for symptoms, reports, medicines, or urgent warning signs. Disease article roadmap Read this topic step by step: meaning, symptoms, warning signs, diagnosis, treatment, prevention, and follow-up. Treatment planner Prepare questions about treatment choices, benefits, risks, side effects, and follow-up. Family & caregiver guide Organize symptoms, reports, medicines, questions, and follow-up safely. Nutrition & diet guide Prepare food, hydration, supplement, and medicine-timing questions safely. Prevention guide Organize risk factors, protective habits, screening, and warning signs. Recovery guide Prepare a safe plan for activity, rehabilitation, warning signs, and follow-up.
Educational health guideWritten for patient understanding and clinical awareness.
Reviewed content workflowUse writer and reviewer profiles for stronger trust.
Emergency safety firstUrgent warning signs are highlighted below.
Definition

Splinter hemorrhages are small, linear, and red or brown lines that occur beneath the nails of the fingers or toes. They are usually less than 1 cm in length and can be a sign of underlying medical conditions, including serious ones like and infections.

There are several types of splinter hemorrhages, each with different causes and implications.

  1. Traumatic Splinter Hemorrhages: These are the most common type of splinter hemorrhages and are caused by physical to the nail. This can occur from things like slamming your finger in a door or hitting your finger with a hammer. The injury can cause small blood vessels to break under the nail and result in a splinter hemorrhage. Traumatic splinter hemorrhages are typically harmless and will clear up on their own with time.
  2. Endocarditis-Associated Splinter Hemorrhages: Endocarditis is an of the inner lining of the heart, and it can cause splinter hemorrhages to occur. The splinter hemorrhages in this case are caused by small clumps of bacteria that break off from the infected and travel through the bloodstream to the nails. Endocarditis-associated splinter hemorrhages are usually found in conjunction with other symptoms of endocarditis, such as , , and joint .
  3. -Associated Splinter Hemorrhages: Rheumatoid is an that can cause in the joints and other parts of the body. People with rheumatoid arthritis are at increased risk for developing splinter hemorrhages, which are caused by the inflammation and irritation of the small blood vessels beneath the nails.
  4. -Associated Splinter Hemorrhages: erythematosus () is another disease that can cause splinter hemorrhages. SLE can cause inflammation and damage to the blood vessels, including the small blood vessels beneath the nails, which can result in splinter hemorrhages.
  5. Raynaud’s Disease-Associated Splinter Hemorrhages: Raynaud’s disease is a condition that affects the blood vessels in the fingers and toes and causes them to narrow in response to cold temperatures or stress. People with Raynaud’s disease are at increased risk for developing splinter hemorrhages, which are caused by the reduced blood flow to the nails.

Causes

These can be a sign of underlying medical conditions and can be caused by a variety of factors. Some of the most common causes of splinter hemorrhages include:

  1. Endocarditis: Endocarditis is an infection of the inner lining of the heart, specifically the endocardium. This condition can cause small clumps of infected material to break off and travel through the bloodstream, leading to splinter hemorrhages.
  2. Vasculitis: Vasculitis is a group of disorders that cause inflammation of the blood vessels. This inflammation can cause the blood vessels to become narrow or even blocked, leading to the formation of small clots, such as splinter hemorrhages.
  3. Trauma: Physical trauma to the nails, such as from bumping or hitting them, can cause splinter hemorrhages.
  4. Raynaud’s disease: Raynaud’s disease is a condition that affects blood flow to the fingers and toes. It can cause the blood vessels to narrow and become blocked, leading to the formation of splinter hemorrhages.
  5. Thrombophilia: Thrombophilia is a condition that causes a person’s blood to form clots more easily than normal. This can lead to the formation of splinter hemorrhages.
  6. Connective tissue disorders: Connective tissue disorders, such as lupus and rheumatoid arthritis, can cause inflammation in the small blood vessels, leading to the formation of splinter hemorrhages.
  7. Septicemia: Septicemia is a serious infection that occurs when bacteria enter the bloodstream and spread throughout the body. This can cause small clumps of infected material to break off and travel through the bloodstream, leading to splinter hemorrhages.
  8. Nicotine and other vasoconstrictors: Nicotine and other vasoconstrictors, such as caffeine and certain medications, can cause the blood vessels to narrow and become blocked, leading to the formation of splinter hemorrhages.
  9. : High blood pressure can cause damage to the blood vessels, leading to the formation of splinter hemorrhages.
  10. Sickle cell : Sickle cell anemia is a condition in which the red blood cells are shaped like crescents, instead of the normal round shape. This can cause the blood cells to become stuck in the small blood vessels, leading to the formation of splinter hemorrhages.
  11. (): COPD is a group of lung diseases that cause breathing difficulties. It can cause damage to the small blood vessels in the fingers and toes, leading to the formation of splinter hemorrhages.
  12. HIV/AIDS: HIV/AIDS weakens the immune system, making it easier for infections to occur. This can cause small clumps of infected material to break off and travel through the bloodstream, leading to splinter hemorrhages.
  13. Systemic lupus erythematosus (SLE): SLE is a type of autoimmune disorder that causes inflammation in various parts of the body, including the blood vessels. This can cause the formation of splinter hemorrhages.
  14. Behcet’s disease: Behcet’s disease is a rare autoimmune disorder that causes inflammation in various parts of the body, including the blood vessels. This can cause the formation of splinter hemorrhages.
  15. Rickettsial infections: Rickettsial infections are caused by bacteria that are spread by ticks and other insects. They can cause small clumps of

Symptoms

The following are the main symptoms associated with splinter hemorrhages:

  1. Pain: Pain or may be felt at the site of the splinter hemorrhage, especially if the affected nail has been traumatized.
  2. Discoloration: The affected nail will typically appear red or brown in color due to the presence of blood under the nail.
  3. Nail Bed Inflammation: Inflammation of the nail bed may occur, causing and redness in the area.
  4. Nail Bed Drainage: Drainage of fluid or from the nail bed may occur, which can indicate the presence of an infection.
  5. Nail Bed Deformity: The affected nail may become deformed, causing it to become raised or have a curved appearance.
  6. Nail Bed Separation: The nail may separate from the nail bed, which can cause pain and tenderness.
  7. Nail Bed Ulceration: An may form on the nail bed, which can be painful and may drain fluid or pus.
  8. Nail Bed Discoloration: The nail bed may become discolored, appearing yellow, green, or brown in color.
  9. Nail Bed Thickening: The nail bed may become thickened, causing the affected nail to become raised or have a distorted appearance.
  10. Nail Bed Splitting: The nail may split or crack, causing pain and tenderness.
  11. Nail Bed : Bruising of the nail bed may occur, causing the affected area to appear black and blue in color.
  12. Nail Bed Tenderness: The affected area may be tender to the touch, causing discomfort or pain when pressure is applied.
  13. Nail Bed Warmth: The affected area may feel warm to the touch, indicating inflammation and the presence of an infection.
  14. Nail Bed Swelling: Swelling may occur in the affected area, causing the nail to become raised or distorted in appearance.
  15. Nail Bed Drainage: Drainage of fluid or pus from the nail bed may occur, which can indicate the presence of an infection.

It is important to seek medical attention if you experience any of these symptoms, as they may indicate a more serious underlying condition. Some of the common causes of splinter hemorrhages include trauma to the nail, infections, systemic diseases, and certain medications.

There are several types of diagnoses and tests that can be performed to determine the cause of splinter hemorrhages. Here are 15 of the most common:

  1. Physical examination: A physical examination of the nails can help to determine the presence of splinter hemorrhages. This examination may involve looking for other signs of illness, such as changes in the color or texture of the skin, nail bed, or surrounding tissue.
  2. Blood tests: Blood tests can be used to check for underlying medical conditions that may be causing splinter hemorrhages. This may include tests for infections, such as streptococcal infections, or tests for autoimmune diseases, such as lupus.
  3. Fungal culture: If a fungal infection is suspected as the cause of splinter hemorrhages, a fungal culture may be performed. This test involves taking a sample of the affected nail and growing it in a laboratory to determine the type of fungus that may be causing the infection.
  4. Biopsy: If other tests do not reveal the cause of splinter hemorrhages, a biopsy may be performed. This involves removing a small piece of the affected nail and examining it under a microscope to determine the underlying cause.
  5. Endocarditis blood culture: Endocarditis is an infection of the heart valves that can cause splinter hemorrhages. A blood culture can be performed to check for the presence of the bacteria that cause endocarditis.
  6. Antinuclear antibody (ANA) test: The ANA test is used to check for autoimmune diseases, such as lupus, that may be causing splinter hemorrhages.
  7. Rheumatoid factor (RF) test: The RF test is used to check for rheumatoid arthritis, an autoimmune disease that can cause splinter hemorrhages.
  8. Erythrocyte sedimentation rate (ESR) test: The ESR test is used to check for inflammation in the body, which may be causing splinter hemorrhages.
  9. C-reactive protein (CRP) test: The CRP test is used to check for inflammation in the body, which may be causing splinter hemorrhages.
  10. Antiphospholipid antibody (APA) test: The APA test is used to check for antiphospholipid syndrome, an autoimmune disorder that can cause splinter hemorrhages.
  11. Homocysteine level test: High levels of homocysteine in the blood have been linked to an increased risk of splinter hemorrhages. A homocysteine level test can be performed to check for elevated levels.
  12. Prothrombin time (PT) test: The PT test is used to check for blood clotting disorders, such as deep vein thrombosis (DVT), which can cause splinter hemorrhages.
  13. Activated partial thromboplastin time (aPTT) test: The aPTT test is used to check for blood clotting disorders, such as DVT, which can cause splinter hemorrhages.
  14. D-dimer test: The D-dimer test is used to check for blood clots, such as DVT, which can cause splinter hemorrhages.
  15. Echocardiogram: An echocardiogram is a test that uses ultrasound to visualize the heart and check for endocarditis, which can cause splinter hemorrhages.

Treatment

Different types of treatments for splinter hemorrhages:

  1. Antibiotics: If a bacterial infection is causing the splinter hemorrhage, antibiotics may be prescribed to clear the infection.
  2. Antifungal medication: Fungal infections of the nails can also cause splinter hemorrhages. In such cases, antifungal medication may be prescribed to clear the infection.
  3. Blood thinners: Blood thinners such as warfarin, heparin, or dabigatran may be prescribed if splinter hemorrhages are caused by a clotting disorder.
  4. Corticosteroids: Corticosteroids may be prescribed to reduce inflammation and swelling. They can also help to improve circulation and prevent the formation of blood clots.
  5. Vitamin and mineral supplements: Vitamin and mineral deficiencies can contribute to the formation of splinter hemorrhages. Taking vitamin and mineral supplements may help to prevent these markings from forming.
  6. Lifestyle changes: Making lifestyle changes, such as quitting smoking and reducing alcohol consumption, can help to improve circulation and prevent the formation of splinter hemorrhages.
  7. Exercise: Regular exercise can help to improve circulation and prevent the formation of splinter hemorrhages.
  8. Hot or cold compresses: Applying hot or cold compresses to the affected area may help to reduce pain and swelling.
  9. Nail care: Proper nail care, such as avoiding rough or sharp objects and keeping nails trimmed, can help to prevent the formation of splinter hemorrhages.
  10. Topical creams: Topical creams, such as those containing vitamin E or tea tree oil, may help to improve circulation and reduce inflammation.
  11. Surgery: In severe cases, surgery may be necessary to remove the affected nail and repair any underlying damage.
  12. Biopsy: A biopsy may be performed to determine the underlying cause of the splinter hemorrhages.
  13. Blood tests: Blood tests may be performed to determine if a clotting disorder or other medical condition is causing the splinter hemorrhages.
  14. Imaging tests: Imaging tests, such as X-rays or MRI scans, may be performed to determine if there is any underlying damage or disease causing the splinter hemorrhages.
  15. Nail reconstruction: In severe cases, nail reconstruction may be necessary to repair the affected nail and prevent future splinter hemorrhages from forming.

It is important to note that the treatment for splinter hemorrhages will depend on the underlying cause of the markings. A healthcare provider can provide a personalized treatment plan based on the individual’s specific medical history and the underlying cause of the splinter hemorrhages.

  1. https://www.ncbi.nlm.nih.gov/books/NBK11733/
  2. https://www.ncbi.nlm.nih.gov/books/NBK208/
  3. https://www.ncbi.nlm.nih.gov/books/NBK212/
  4. https://www.ncbi.nlm.nih.gov/books/NBK92761/
  5. https://www.ncbi.nlm.nih.gov/books/NBK11733/
  6. https://www.nccih.nih.gov/health/skin-conditions-at-a-glance
  7. https://www.aad.org/public/diseases/a-z
  8. https://medlineplus.gov/skinconditions.html
  9. https://www.aad.org/about/burden-of-skin-disease
  10. https://www.usa.gov/federal-agencies/national-institute-of-arthritis-musculoskeletal-and-skin-diseases
  11. https://www.cdc.gov/niosh/topics/skin/default.html
  12. https://www.skincancer.org/
  13. https://www.jaad.org/
  14. https://www.psoriasis.org/about-psoriasis/
  15. https://books.google.com/books?
  16. https://www.niams.nih.gov/health-topics/skin-diseases
  17. https://cms.centerwatch.com/directories/1067-fda-approved-drugs/topic/292-skin-infections-disorders
  18. https://www.fda.gov/files/drugs/published/Acute-Bacterial-Skin-and-Skin-Structure-Infections—Developing-Drugs-for-Treatment.pdf
  19. https://dermnetnz.org/topics
  20. https://www.aaaai.org/conditions-treatments/allergies/skin-allergy
  21. https://www.sciencedirect.com/topics/medicine-and-dentistry/occupational-skin-disease
  22. https://aafa.org/allergies/allergy-symptoms/skin-allergies/
  23. https://www.nibib.nih.gov/
  24. https://rxharun.com/resources/category/resources/rxharun/article-types/skin-care-beauty/skin-diseases-types-symptoms-treatment/
  25. https://www.nei.nih.gov/
  26. https://en.wikipedia.org/wiki/List_of_skin_conditions
  27. https://en.wikipedia.org/?title=List_of_skin_diseases&redirect=no
  28. https://en.wikipedia.org/wiki/Skin_condition
  29. https://oxfordtreatment.com/
  30. https://www.nidcd.nih.gov/health/
  31. https://consumer.ftc.gov/articles/w
  32. https://www.nccih.nih.gov/health
  33. https://catalog.ninds.nih.gov/
  34. https://www.aarda.org/diseaselist/
  35. https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets
  36. https://www.nibib.nih.gov/
  37. https://www.nia.nih.gov/health/topics
  38. https://www.nichd.nih.gov/
  39. https://www.nimh.nih.gov/health/topics
  40. https://www.nichd.nih.gov/
  41. https://www.niehs.nih.gov
  42. https://www.nimhd.nih.gov/
  43. https://www.nhlbi.nih.gov/health-topics
  44. https://obssr.od.nih.gov/
  45. https://www.nichd.nih.gov/health/topics
  46. https://rarediseases.info.nih.gov/diseases
  47. https://beta.rarediseases.info.nih.gov/diseases
  48. https://orwh.od.nih.gov/


Doctor visit helper

Prepare before seeing a doctor

A simple rural-patient checklist to help you explain symptoms clearly, ask better questions, and avoid unsafe self-treatment.

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

  • Write when the problem started and how it changed.
  • Bring old prescriptions, investigation reports, and current medicines.
  • Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
  • Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

  • What is the most likely cause of my symptoms?
  • Which danger signs mean I should go to hospital quickly?
  • Which tests are necessary now, and which can wait?
  • How should I take medicines safely and what side effects should I watch for?
  • When should I come for follow-up?

Tests to discuss

  • Vital signs: temperature, pulse, blood pressure, oxygen saturation
  • Basic physical examination by a clinician
  • CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

  • Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
  • Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
  • Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
  • Use comfortable posture and gentle movement as tolerated.
  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Medicine doctor / pediatrician for children / qualified clinician
Tests to discuss with doctor
  • Temperature chart and hydration assessment
  • CBC with platelet count if fever persists or dengue/other infection is possible
  • Urine test, malaria/dengue tests, chest evaluation, or blood culture only when clinically indicated
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?
  • Do I need antibiotics, or is this more likely viral?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Splinter Hemorrhages

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.