Cancer in horses

Cancer is a group of diseases that causes changes in normal cell growth where cells begin to multiply chaotically. This multiplication of cells can form masses which can impede the normal function of the body. Cancer begins to spread throughout the body when it is metastasizing.

Cancers found in horses include

• Squamous cell carcinoma
• Melanoma
• Sarcoid
• Lymphoma

squamous cell carcinoma, melanoma, and sarcoid.

Symptoms of cancer in horses

• Loss of hair
• Swelling of lymph nodes
• Weight loss
• Chronic diarrhea
• Abdominal distension
• Hemorrhage
• Difficulties breathing
• Foul-smelling breath
• Lameness
• Dry cough
• Loss of appetite    

Symptoms vary depending on the type and location of the tumor. Granulosa cell tumors, for example, arise from ovarian tissue and can cause hormonal and reproductive changes in mares.

If you suspect that your horse may have cancer, please contact your veterinarian immediately. 

Treatment for cancer in horses

Treatment for cancer can include surgery, radiotherapy, and chemotherapy. Whether surgery is a treatment option for your horse depends on the location and size of the masses. Some tumors do not require immediate treatment; for example, most thyroid tumors in horses are benign and may be left untreated if they do not affect the horse’s quality of life. Chemotherapy can be a treatment option through medication, and radiotherapy may be conducted to prevent cancer cells from spreading.  

Concerned your horse may have cancer symptoms? Schedule an appointment with one of our veterinary professionals today at https://vetster.com/ for advice and to learn more.