Approximately one in five cats will be diagnosed with cancer. At Dogwood in Marietta, GA, our oncology team diagnoses and treats feline cancer every day. Knowing what to watch for is the single most powerful tool you have — because early detection saves lives.

 

1. Lymphoma — The Most Common Feline Cancer

Develops in the lymphatic system; can spread to the intestines, chest cavity, and kidneys. FeLV is a known risk factor; vaccination significantly reduces this risk.

Warning signs: weight loss, vomiting, diarrhea, decreased appetite, lethargy, swollen lymph nodes

 

2. Squamous Cell Carcinoma (SCC)

Develops in skin and mucous membrane cells, including the mouth. Oral SCC is aggressive and associated with secondhand smoke. Skin SCC affects low-pigment areas (ears, nose, eyelids) and is linked to UV exposure.

• Oral SCC signs: difficulty eating, drooling, bad breath, visible mouth sores
• Skin SCC signs: non-healing sores, crusty or bleeding lesions

 

3. Mast Cell Tumors

Can form in the skin or internal organs; many are benign but require biopsy to confirm. Siamese cats have higher recorded rates.

• Warning signs: new or changing skin lumps, firm or ulcerated masses, itching around a lump

 

4. Bone Cancer (Osteosarcoma)

Rare in cats but aggressive; more common in larger breeds; typically affects the limbs.

• Warning signs: persistent limping, swelling around a bone, reluctance to move, lethargy

 

General Cancer Warning Signs in Cats

• New or growing lumps anywhere on the body
• Persistent sores that don’t heal
• Foul odor — healthy cats don’t smell
• Unexplained weight loss or muscle wasting
• Difficulty urinating or defecating
• Unexplained bleeding
• Prolonged lethargy, hiding, or personality change

 

Regular twice-yearly wellness visits for cats over 8 are the single best early detection tool. Cats hide illness — your vet may catch cancer before you ever see a symptom.

 

Concerned about your cat? Schedule an oncology consultation: (404) 609-1234 | info@www.dogwood.vet