Some common health problems in dogs include ear infections, worms, fleas and dermatitis, explains WebMD. Dogs also tend to have digestive problems, which often result in vomit or diarrhea.
Ear infections often occur in dogs as a result of bacteria or yeast infections, mites or allergies, states WebMD. Sometimes, hair can grow deep inside the ear canal, leading to an infection. A dog with ear problems tends to shake or tilt its head often, scratch at its ears and have balance issues. The ears can swell and produce pus and bloody discharges. These infections often require medical treatment and a thorough ear cleaning.
Dogs are also prone to getting parasitic infestations, notes WebMD. These can occur internally as worms or externally as fleas. Worm problems include tapeworms, hookworms, whipworms and roundworms, causing weight loss, diarrhea, appetite change and an ill appearance. The dogs need to be treated immediately with a prescribed oral medication, as some worms can be fatal. External parasites, such as fleas, can cause hair loss, hot spots, dermatitis and excessive scratching, and they can carry tapeworms. A pet owner should consult with a veterinarian before treating a dog with any sort of oral medications or topical creams.