Palmar Keratoses

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 9 min read
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Article Summary

Palmar keratoses, also known as keratosis palmaris, refer to a skin condition characterized by the development of thickened, rough, and scaly patches on the palms of the hands. In this article, we will explore what palmar keratoses are, their various types, common causes, symptoms, diagnostic tests, available treatments, and medications, all explained in plain and easy-to-understand language. Types of Palmar Keratoses: Palmar keratoses can be...

Key Takeaways

  • This article explains Common Causes of Palmar Keratoses: in simple medical language.
  • This article explains Symptoms of Palmar Keratoses: in simple medical language.
  • This article explains Diagnostic Tests for Palmar Keratoses: in simple medical language.
  • This article explains Treatment Options for Palmar Keratoses: in simple medical language.
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Definition

Palmar keratoses, also known as keratosis palmaris, refer to a skin condition characterized by the development of thickened, rough, and scaly patches on the palms of the hands. In this article, we will explore what palmar keratoses are, their various types, common causes, symptoms, diagnostic tests, available treatments, and medications, all explained in plain and easy-to-understand language.

Types of Palmar Keratoses:

Palmar keratoses can be categorized into different types, each with unique characteristics:

  1. Acanthosis Nigricans: A type of palmar keratosis where the skin on the palms becomes dark, thickened, and velvety.
  2. Palmoplantar Keratosis: A form of keratosis that runs in families, causing thick, scaly skin on the palms and soles.
  3. : Some individuals with psoriasis may develop palmar keratoses, resulting in red, scaly patches on the palms.
  4. Warts: Warts on the palms can manifest as rough, raised areas, also considered a type of palmar keratosis.
  5. Actinic Keratosis: Develops from sun damage and can occur on the palms, leading to rough, scaly patches.

Common Causes of Palmar Keratoses:

Understanding the underlying causes of palmar keratoses is essential:

  1. Genetics: genes can predispose individuals to hereditary palmoplantar keratosis.
  2. Age: As people age, their skin can become thicker and more prone to developing palmar keratoses.
  3. Sun Exposure: Excessive sun exposure over time can lead to actinic keratosis on the palms.
  4. Skin Conditions: Conditions like psoriasis and warts can contribute to palmar keratoses.
  5. Hormonal Changes: Hormonal fluctuations may trigger acanthosis nigricans, leading to palm skin changes.
  6. : Acanthosis nigricans is often associated with diabetes.
  7. Obesity: Being overweight can increase the risk of acanthosis nigricans.
  8. Medications: Certain drugs, such as retinoids, can cause palmar keratoses as a .
  9. Friction: Repeated friction or pressure on the palms can lead to thickened skin.
  10. Smoking: Smoking can exacerbate skin problems, including palmar keratoses.
  11. Infections: Some infections may result in warts, which are a type of palmar keratosis.
  12. Chemical Exposure: Handling harsh chemicals without protection can damage the skin on the palms.
  13. Allergies: Allergic reactions can sometimes cause skin changes on the palms.
  14. Immune System Disorders: Conditions that affect the immune system may contribute to palmar keratoses.
  15. : Eczema can affect the palms and cause scaling and roughness.
  16. : Contact dermatitis from irritants or allergens can lead to palm skin issues.
  17. Nutritional Deficiencies: Lack of essential nutrients in the diet may affect skin health.
  18. Stress: Stress can exacerbate certain skin conditions, including psoriasis.
  19. Chemical Peels: Aggressive chemical peels can damage the skin on the palms.
  20. Disorders: Some autoimmune diseases can cause skin changes, including palmar keratoses.

Symptoms of Palmar Keratoses:

Recognizing the symptoms of palmar keratoses can help with early detection and treatment:

  1. Thickened Skin: The skin on the palms becomes abnormally thick.
  2. Rough Texture: Palms feel rough and may have a sandpaper-like texture.
  3. Scaling: Scaly patches or flakes can develop on the palms.
  4. : Palmar keratoses may cause itching or discomfort.
  5. Redness: Inflammatory reactions can lead to redness on the palms.
  6. Darkened Skin: Acanthosis nigricans can cause darkening of the palm skin.
  7. or Discomfort: In some cases, palmar keratoses can be painful.
  8. Raised Bumps: Warts and some other types may result in raised bumps.
  9. Blistering: cases of palmar keratoses may lead to blisters.
  10. Cracking: Skin on the palms may crack and become painful.
  11. Changes in Skin Color: The color of the skin on the palms may change.
  12. Bleeding: Severe keratoses can cause bleeding when cracked or irritated.
  13. Nail Changes: Palmar keratoses can sometimes affect the nails.
  14. Fissures: Deep cracks or fissures can develop on the palm’s surface.
  15. Painless Lumps: Certain types of keratoses can appear as painless lumps.
  16. Nail Thickening: Nails may become thicker and discolored.
  17. Itchy : Psoriasis-related keratoses can lead to itchy rashes.
  18. Burning Sensation: Some individuals may experience a burning sensation.
  19. Palm : Swelling of the palms can occur in severe cases.
  20. Skin Peeling: Peeling of the skin can be a symptom of palmar keratoses.

Diagnostic Tests for Palmar Keratoses:

Medical professionals may use various tests to diagnose palmar keratoses:

  1. Visual Examination: A simple visual inspection of the palms can often confirm the presence of keratoses.
  2. Dermoscopy: Dermoscopy involves using a specialized tool to examine skin lesions in detail.
  3. Skin : A small sample of skin may be taken and examined under a microscope to determine the type of keratosis.
  4. Patch Testing: This test helps identify contact dermatitis by exposing the skin to potential allergens.
  5. Blood Tests: Blood tests can be conducted to check for underlying conditions like diabetes or nutritional deficiencies.
  6. Wood’s Lamp Examination: A Wood’s lamp emits ultraviolet light to examine the skin for or infections.
  7. Skin Scraping: In cases of suspected fungal infections, a skin scraping may be collected for analysis.
  8. Testing: To identify allergens causing dermatitis, allergy testing may be recommended.
  9. Tzanck Smear: This test can help diagnose infections, including herpes.
  10. Potassium Hydroxide (KOH) Test: KOH testing is used to detect fungal infections of the skin.
  11. Skin Culture: Culturing a skin sample can identify bacterial infections.
  12. X-rays: In rare cases, X-rays may be used to investigate underlying bone abnormalities.
  13. : To check for diabetes-related acanthosis nigricans, blood glucose levels are monitored.
  14. Ultrasonography: Ultrasonography can assess deeper skin layers for abnormalities.
  15. (): MRI may be used to evaluate the extent of skin lesions.
  16. Allergy Patch Testing: Patch tests can help identify allergens causing contact dermatitis.
  17. Skin Prick Testing: Skin prick tests check for allergies by introducing small amounts of allergens to the skin.
  18. Scraping for Mites: or mite infestations may require skin scraping for .
  19. Skin Swabbing: Swabbing can help detect bacterial or fungal infections.
  20. Electromyography (): EMG measures muscle and nerve activity and may be used if palm discomfort is severe.

Treatment Options for Palmar Keratoses:

Treating palmar keratoses depends on the type and severity of the condition:

  1. Topical Creams: Applying creams with ingredients like salicylic acid or retinoids can help soften and reduce the thickness of keratosis.
  2. Cryotherapy: Freezing the keratotic lesions with liquid nitrogen can effectively remove them.
  3. Electrosurgery: A dermatologist may use a specialized tool to burn off the keratosis.
  4. Laser Therapy: Certain lasers can target and remove keratotic lesions.
  5. Excision: procedures involve cutting out the keratosis and stitching the area.
  6. Photodynamic Therapy (PDT): This treatment uses light-activated drugs to target and destroy keratosis.
  7. Chemical Peels: chemical peels can help exfoliate the skin, reducing keratosis.
  8. Moisturizers: Regular use of moisturizers can help keep the skin hydrated and minimize scaling.
  9. Avoiding Irritants: Identifying and avoiding substances that worsen keratosis, such as harsh soaps, is essential.
  10. UV Protection: Wearing sunscreen and protective clothing can prevent actinic keratosis.
  11. Antifungal Medications: For fungal-related keratosis, antifungal creams or medications may be prescribed.
  12. Antibiotics: Bacterial infections require antibiotics to clear the skin.
  13. Corticosteroids: Prescription corticosteroid creams can reduce inflammation and itching.
  14. Keratolytics: Keratolytic agents like urea can help break down excess skin cells.
  15. Oral Medications: In severe cases, oral medications like acitretin may be prescribed.
  16. Salicylic Acid Patches: Over-the-counter salicylic acid patches can be applied to keratotic areas.
  17. Light Therapy: Some cases of palmoplantar pustulosis respond to light therapy.
  18. Change in Footwear: For keratosis on the soles, comfortable and cushioned footwear is recommended.
  19. Physical Therapy: If palm discomfort affects hand function, physical therapy may help.
  20. Lifestyle Changes: Maintaining a healthy lifestyle, managing stress, and improving diet can benefit overall skin health.

Medications for Palmar Keratoses:

Here are some common medications that may be prescribed to treat palmar keratoses:

  1. Tretinoin (Retin-A): A topical retinoid that promotes skin cell turnover.
  2. Salicylic Acid: Available in various over-the-counter products for gentle exfoliation.
  3. Calcineurin Inhibitors: Topical immunosuppressants like tacrolimus can reduce inflammation.
  4. Podophyllin Resin: Used topically to treat warts and certain keratoses.
  5. Imiquimod (Aldara): A topical cream that stimulates the immune system to treat actinic keratosis.
  6. 5-Fluorouracil (Efudex): Topical chemotherapy cream used to target abnormal skin cells.
  7. Urea Cream: A keratolytic agent that helps soften and remove thickened skin.
  8. Acitretin (Soriatane): An oral retinoid used for severe cases of palmoplantar keratosis.
  9. Antibiotics: Oral antibiotics like doxycycline may be prescribed for bacterial infections.
  10. Antifungal Medications: Oral antifungal drugs like terbinafine treat fungal-related keratosis.
  11. Corticosteroids: Prescription-strength corticosteroid creams or ointments can reduce inflammation.
  12. Methotrexate: An immunosuppressive medication used for severe psoriasis-related keratosis.
  13. Isotretinoin (Accutane): A powerful oral retinoid occasionally used for severe palmoplantar keratosis.
  14. Cimetidine (Tagamet): May be prescribed for acanthosis nigricans associated with certain conditions.
  15. Antibacterial Soaps: Specialized antibacterial soaps can help manage bacterial infections.
  16. Antifungal Creams: Topical antifungal creams can treat fungal-induced keratosis.
  17. Tacrolimus (Protopic): A topical immunosuppressant sometimes used for psoriasis-related keratosis.
  18. Anthralin (Dritho-Scalp): A topical treatment for psoriasis-related keratosis.
  19. Doxepin (Zonalon): A topical cream used for itch relief in some cases.
  20. Alpha Hydroxy Acids (AHAs): Found in over-the-counter creams, they exfoliate and soften the skin.

Conclusion:

Palmar keratoses are a group of skin conditions that can affect the palms of the hands. They can be caused by various factors, including genetics, sun exposure, and underlying medical conditions. Recognizing the symptoms and seeking early diagnosis and treatment is crucial for managing palmar keratoses effectively.

 

Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, previous medical  history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. Thank you for giving your valuable time to read the article.

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

 

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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: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
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?

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: Palmar Keratoses

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.