A lack of appetite or energy could be a symptom of canine skin cancer.
Although the public has become more familiar with cancer and its symptoms, the ugly reality is that the disease still can show up unexpectedly. The ravages of cancer are not limited to humans; they affect pets, including dogs. Pet owners can look out for their dogs by familiarizing themselves with the symptoms of skin cancer in dogs.
Skin
Dog owners should be aware of irregular skin growths on their dogs. Not all cysts, tumors or growths are cancerous, but enough of them are that a veterinarian should be notified of unusual growths. If a growth (or tumor) is bleeding, that may be a symptom of skin cancer. Skin that has taken on an unusual color or has been a source of persistent irritation for your dog also could be a symptom. Additionally, fluid discharge from a growth could be indicative of skin cancer.
Changes in Behavior
Dogs that suffer from skin cancer may lick, scratch and chew affected areas excessively, further irritating sores that have been slow to heal. A dog that does not want to walk or is having a hard time walking might be hindered by tumors on its paws; look for for pink, wart-like growths on the dog's paws. Dogs suffering from skin cancer also may lose their appetite and lack energy.
Diet and Digestion Issues
Although it may be more typical of advanced cancer, rapid weight loss can be a symptom of skin cancer in dogs. Dogs having difficulty eliminating waste also may be showing symptoms. If a dog's feces is either bloody or dark black, these symptoms should be reported to a vet. Additionally, difficulties from skin cancer may prevent a dog from properly digesting food, so diarrhea, vomit and even bloody vomit may be symptoms.
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