Canine woe is a term used to describe the various ailments that can affect dogs. Fleas, LICE, and mange are all common canine woe that can cause discomfort and irritation for dogs. Fleas are small, wingless insects that feed on the blood of their hosts, while LICE are tiny parasites that live on the skin of their hosts. Mange is a skin disease caused by mites that burrow into the skin of their hosts. All three of these canine woe can be treated with proper veterinary care.