Kala-azar in dogs can cause diarrhea, loss of appetite, poor energy, hair loss, rough hair, sebum overflow, skin ulcers with nodules, anemia, weight loss, weakness and other symptoms. The incubation period of dog kala-azar is relatively long, ranging from several months to one year. It can take more than a year, and the onset process is very slow and difficult to detect in time. If the dog has similar symptoms, it is best to take the dog to the pet hospital for examination and treatment immediately.