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moderate urgency🐈 Domestic Shorthair

Domestic Shorthair Skin Lumps

New growths, bumps, or masses on or under the skin. Can be benign (lipomas, cysts) or malignant (mast cell tumors, sarcomas).

Breed Note: Domestic Shorthair

While Domestic Shorthairs don't have a specific breed predisposition related to this symptom, any cat showing these signs should be monitored carefully.

Common Causes

Lipoma (fatty tumor)
Mast cell tumor
Cyst
Abscess
Histiocytoma
Injection site sarcoma (cats)

⚠️ Red Flags — See a Vet Immediately

  • •Rapid growth
  • •Ulceration or bleeding
  • •Fixed to underlying tissue
  • •Multiple new lumps
  • •Lump at previous injection site (cats)

When to See a Vet

Any new lump should be evaluated. Urgently if rapidly growing, ulcerated, or changing in appearance.

Home Care Tips

  1. 1Note the size, location, and date first noticed
  2. 2Monitor for growth (measure weekly)
  3. 3Do not squeeze or puncture
  4. 4Photograph for comparison

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Skin Lumps in Other Breeds

Maine CoonPersianSiameseBengalRagdollBritish ShorthairSphynxAbyssinianScottish FoldBurmese

Disclaimer: This information is for educational purposes only and is not a substitute for professional veterinary advice. If your pet is showing concerning symptoms, please contact your veterinarian. AIVET is a decision-support tool in active development and is not validated clinical software.