The symptoms of tuberculosis in dogs do not show obvious symptoms for a long period of time, because this disease is a chronic disease. After a period of time, dogs will have loss of appetite, fatigue, weakness, weight loss, lack of energy, etc., and will also be accompanied by low-grade fever, cough, and anemia. Symptoms of vomiting, diarrhea, and pulmonary tuberculosis appear. In the early stage of tuberculosis, dry cough turns into wet cough with mucopurulent sputum.