Cat Scratch Disease Granulomas

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 7 min read
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.

Patient Mode

Understand this article easily

Switch between simple English and easy Bangla patient notes. This is for education and does not replace a doctor consultation.

If you've ever been scratched or bitten by a cat and experienced swollen lymph nodes or other symptoms afterward, you might have encountered a condition called Cat Scratch Disease (CSD). In this guide, we'll break down everything you need to know about CSD, from its...

For severe symptoms, danger signs, pregnancy, child illness, or sudden worsening, seek urgent medical care.

বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

If you've ever been scratched or bitten by a cat and experienced swollen lymph nodes or other symptoms afterward, you might have encountered a condition called Cat Scratch Disease (CSD). In this guide, we'll break down everything you need to know about CSD, from its types and causes to its symptoms, diagnostic tests, treatments, and more, all explained in simple, easy-to-understand language. Types of Cat...

Key Takeaways

  • This article explains Causes of Cat Scratch Disease in simple medical language.
  • This article explains Symptoms of Cat Scratch Disease in simple medical language.
  • This article explains Diagnostic Tests for Cat Scratch Disease in simple medical language.
  • This article explains Non-Pharmacological Treatments for Cat Scratch Disease in simple medical language.
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.

Seek urgent medical care if you notice

These warning signs are general safety guidance. Local emergency numbers and clinical judgment should always come first.

  • Severe symptoms, breathing difficulty, fainting, confusion, or rapidly worsening illness.
  • New weakness, severe pain, high fever, or symptoms after a serious injury.
  • Any symptom that feels urgent, unusual, or unsafe for the patient.
1

Emergency now

Use emergency care for severe, sudden, rapidly worsening, or life-threatening symptoms.

2

See a doctor

Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

3

Learn safely

Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

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.
Definition

If you’ve ever been scratched or bitten by a cat and experienced swollen lymph nodes or other symptoms afterward, you might have encountered a condition called Cat Scratch Disease (CSD). In this guide, we’ll break down everything you need to know about CSD, from its types and causes to its symptoms, diagnostic tests, treatments, and more, all explained in simple, easy-to-understand language.

Types of Cat Scratch Disease Granulomas

Cat Scratch Disease can manifest in different ways, but the most common form is the development of granulomas—small, localized areas of infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation—in the lymph nodes.

Causes of Cat Scratch Disease

  1. Scratch or bite from an infected cat
  2. Exposure to flea feces containing the bacteria Bartonella henselae
  3. Close contact with kittens, particularly those that carry the bacteria
  4. Weakened immune system
  5. Living in areas with a high population of infected cats
  6. Playing roughly with cats
  7. Poor hand hygiene after handling cats
  8. Immunocompromised conditions such as HIV/AIDS
  9. Exposure to ticks or fleas
  10. Scratches or bites from other animals carrying the bacteria
  11. Sharing contaminated objects with infected individuals
  12. Occupational exposure (veterinarians, animal shelter workers)
  13. Drinking unpasteurized milk from infected cows
  14. Being scratched or bitten by other small animals
  15. Poor wound care after being scratched or bitten
  16. Transfusion with infected blood
  17. Receiving organ transplants from infected donors
  18. Traveling to regions where the disease is more prevalent
  19. Having pre-existing conditions that compromise the immune system
  20. Ingesting contaminated food or water

Symptoms of Cat Scratch Disease

  1. Swollen and tender lymph nodes near the site of the scratch or bite
  2. Fever
  3. Fatigue
  4. pain in the head or upper neck. সহজ বাংলা: মাথাব্যথা।" data-rx-term="headache" data-rx-definition="Headache means pain in the head or upper neck. সহজ বাংলা: মাথাব্যথা।">Headache
  5. Loss of appetite
  6. Body aches
  7. Sore throat
  8. Rash at the site of the scratch or bite
  9. Malaise (general discomfort)
  10. Chills
  11. Nausea
  12. Vomiting
  13. Abdominal pain
  14. Joint pain
  15. Redness around the scratch or bite
  16. Swelling of the affected area
  17. Eye redness
  18. Enlarged spleen
  19. Neurological symptoms (rare)
  20. Weight loss

Diagnostic Tests for Cat Scratch Disease

  1. Physical examination to assess lymph nodes and any visible symptoms
  2. Blood tests to check for antibodies to Bartonella henselae
  3. Polymerase chain reaction (PCR) test to detect bacterial DNA in blood or tissue samples
  4. Serological tests such as indirect fluorescent antibody (IFA) assay
  5. Lymph node biopsy to examine tissue under a microscope
  6. Chest X-ray to check for lung involvement (rare)
  7. Ultrasound imaging of lymph nodes
  8. CT scan or MRI for detailed imaging of affected areas
  9. Fine-needle aspiration of lymph nodes for sample collection
  10. Skin testing for delayed hypersensitivity reactions
  11. PCR testing of fluid from lymph nodes
  12. Blood culture to isolate bacteria
  13. Immunohistochemical staining of tissue samples
  14. ELISA (enzyme-linked immunosorbent assay) test for antibodies
  15. Western blot test for antibody confirmation
  16. Lymphangiography to visualize lymphatic vessels
  17. Electrophoresis to separate proteins in a sample
  18. Echocardiogram to check for endocarditis (rare)
  19. Liver function tests
  20. Complete blood count (CBC) to assess overall health

Non-Pharmacological Treatments for Cat Scratch Disease

  1. Rest and adequate sleep to support the immune system
  2. Applying warm compresses to swollen lymph nodes for comfort
  3. Maintaining good hygiene, especially handwashing after contact with cats
  4. Avoiding rough play with cats to prevent scratches and bites
  5. Keeping cats indoors to reduce exposure to fleas and other animals
  6. Cleaning scratches or bites with soap and water promptly
  7. Using antiseptic solutions on wounds to prevent infection
  8. Avoiding contact with stray or feral cats
  9. Using flea control products on pets as directed by a veterinarian
  10. Providing a balanced diet to cats to support their immune health
  11. Wearing gloves when handling soil or gardening to prevent exposure to bacteria
  12. Avoiding contact with cat feces, particularly from outdoor cats
  13. Covering scratches or bites with clean bandages
  14. Educating children about proper handling of pets to minimize risks
  15. Washing hands before and after handling pets or their belongings
  16. Using caution when introducing new pets to the household
  17. Keeping cats’ claws trimmed to reduce the risk of deep scratches
  18. Using flea collars or topical treatments on pets
  19. Regularly cleaning and disinfecting litter boxes
  20. Discouraging cats from licking open wounds or scratches
  21. Providing a safe and stress-free environment for pets
  22. Avoiding contact with wild animals that may carry the bacteria
  23. Seeking prompt medical attention for any signs of infection
  24. Using gloves when cleaning litter boxes or handling pet waste
  25. Avoiding sharing personal items such as towels or bedding with cats
  26. Supervising interactions between pets and young children
  27. Regularly vacuuming and cleaning areas where pets spend time
  28. Encouraging outdoor play in enclosed spaces to prevent exposure to other animals
  29. Following up with healthcare providers for any recommended tests or treatments
  30. Consulting with a veterinarian about any concerns regarding pet health

Drugs Used in the Treatment of Cat Scratch Disease

  1. Antibiotics such as azithromycin
  2. Doxycycline
  3. Trimethoprim-sulfamethoxazole
  4. Ciprofloxacin
  5. Clarithromycin
  6. Amoxicillin-clavulanate
  7. Rifampin
  8. Gentamicin
  9. Levofloxacin
  10. Erythromycin
  11. Clindamycin
  12. Ampicillin-sulbactam
  13. Minocycline
  14. Fluoroquinolones
  15. Ceftriaxone
  16. Cefotaxime
  17. Meropenem
  18. Vancomycin
  19. Linezolid
  20. Tigecycline

Surgeries for Complications of Cat Scratch Disease

  1. Lymph node excision for persistent or severe swelling
  2. Abscess drainage for fluid accumulation
  3. Debridement of infected tissue
  4. Splenectomy for severe complications involving the spleen
  5. Incision and drainage of abscesses
  6. Wound exploration for deep or infected wounds
  7. Biopsy of affected organs for diagnostic purposes
  8. Thoracotomy for complications involving the chest cavity
  9. Laparotomy for abdominal complications
  10. Neurosurgery for rare neurological complications

Preventive Measures for Cat Scratch Disease

  1. Avoiding rough play with cats
  2. Washing hands after handling cats or their belongings
  3. Keeping cats indoors to reduce exposure to fleas and other animals
  4. Using flea control products on pets as recommended by a veterinarian
  5. Keeping cats’ claws trimmed to minimize scratches
  6. Avoiding contact with stray or feral cats
  7. Educating children about proper pet handling
  8. Seeking prompt medical attention for cat scratches or bites
  9. Using caution when introducing new pets to the household
  10. Regular veterinary check-ups for pets

When to See a Doctor

If you experience any symptoms of Cat Scratch Disease, such as swollen lymph nodes, fever, or rash, especially following a scratch or bite from a cat, it’s essential to seek medical attention. Additionally, if symptoms worsen or persist despite home care measures, or if you have a weakened immune system, it’s crucial to see a healthcare provider promptly for evaluation and treatment.

In conclusion, Cat Scratch Disease can be a discomforting experience, but with proper understanding of its causes, symptoms, diagnostic procedures, and treatments, you can effectively manage and prevent its complications. Remember to prioritize good hygiene practices and seek medical advice when needed to ensure your health and the well-being of your furry companions.

 

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.

 

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: Cat Scratch Disease Granulomas

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.

RX Patient Help

Ask a health question safely

Write your symptom story. A health professional or site editor can review it before any answer is prepared. This box is not for emergency care.

Emergency first: Severe chest pain, breathing trouble, unconsciousness, stroke signs, severe injury, heavy bleeding, or rapidly worsening symptoms need urgent local medical care now.

Frequently Asked Questions

Is this article a replacement for a doctor?

No. It is educational content only. Patients should consult a qualified clinician for diagnosis and treatment.

When should I seek urgent care?

Seek urgent care for severe symptoms, rapidly worsening condition, breathing difficulty, severe pain, neurological changes, or any emergency warning sign.

References

Add references, clinical guidelines, textbooks, journal articles, or trusted medical sources here. You can edit this area from the RX Article Professional Blocks panel.

More from this topic
  1. Orbital Foreign Body (Eye Socket Foreign Body)

    DefinitionAn orbital foreign body means that a piece of material that does not belong to the body has entered and remained inside the orbit, which is...

    August 19, 2025 • Rx Eye & Vision Care (A - Z)
  2. Ocular Bee Injuries

    DefinitionAn ocular bee injury means a bee or similar insect has harmed the eye or the tissues around the eye. The harm can be from a...

    August 17, 2025 • Rx Eye & Vision Care (A - Z)
  3. Sexual Assault

    DefinitionSexual assault is a grave violation of one’s bodily autonomy and consent. It refers to any unwanted sexual activity or behavior where force, coercion, manipulation, or...

    March 6, 2024 • Rx Injury and Surgery (A - Z)
  4. Military Combat Trauma

    DefinitionMilitary combat trauma refers to the psychological and physical distress experienced by individuals involved in armed conflicts or combat situations. It encompasses a range of symptoms...

    March 6, 2024 • Rx Injury and Surgery (A - Z)
  5. Domestic Violence

    DefinitionDomestic violence is a serious issue that affects millions of people worldwide. It can happen to anyone, regardless of age, gender, race, or socioeconomic status. In...

    March 6, 2024 • Rx Injury and Surgery (A - Z)
  6. Natural Disaster Trauma

    DefinitionNatural disasters can cause immense destruction, not only to physical surroundings but also to mental health. When individuals experience or witness such catastrophic events, they may...

    March 6, 2024 • Rx Injury and Surgery (A - Z)
  7. Cultural Trauma

    DefinitionCultural trauma refers to a deep-rooted emotional wound experienced by a group of people due to a significant event or series of events that threaten their...

    March 6, 2024 • Rx Injury and Surgery (A - Z)
  8. Intergenerational Trauma

    DefinitionIntergenerational trauma refers to the transmission of traumatic experiences and their associated effects across generations within families or communities. These experiences can deeply impact individuals’ mental,...

    March 6, 2024 • Rx Injury and Surgery (A - Z)
  9. How much does skin removal surgery cost?

    DefinitionThere’s so much to celebrate after a serious weight loss? journey—newfound health, confidence, and a dramatically different lifestyle. But even after working hard at losing weight,...

    March 4, 2024 • Rx Injury and Surgery (A - Z)
  10. Overbearing Guardianship

    DefinitionOverbearing guardianship, also known as oppressive guardianship, refers to a situation where an individual’s rights and decision-making abilities are excessively controlled or restricted by a guardian....

    February 23, 2024 • Rx Injury and Surgery (A - Z)