The difference between tuberculosis and tumor lies in the definition, cause, infectiousness, symptoms, and treatment. 1. Definition: Tuberculosis is a respiratory disease caused by Mycobacterium tuberculosis infection. Tumor is divided into benign and malignant tumors, which are new organisms formed by the proliferation of local tissue cells under the action of various tumorigenic factors, also known as superfluous organisms. 2. Etiology: Tuberculosis is mainly caused by Mycobacterium tuberculosis infection, which increases the risk of tuberculosis in patients with low immune function, drug and alcohol abuse. Tumors have many causative factors, including chemical, physical, biological, immune function, endocrine and genetic factors. 3. Contagiousness: TB is contagious, and the main source of infection is TB patients with bacteria in sputum. Tumors are not infectious. 4. Symptoms: some patients with tuberculosis have no symptoms, and for active tuberculosis, patients will have symptoms such as coughing, coughing up sputum, hemoptysis, chest pain, etc. The symptoms of tumor are related to the location of the disease. Symptoms of tumor are related to the location of the disease. If it appears in the lung, benign tumors with small size can be asymptomatic, while those with large size can have symptoms such as cough, chest tightness, dyspnea, and so on. If the tumor is malignant, besides the above symptoms, there will be irritating cough, hemoptysis and other symptoms. 5. Treatment: Tuberculosis is mainly treated with anti-tuberculosis drugs, and the principle of treatment is early, regular, appropriate amount and combination. If it is benign tumor, those with small size can be observed first. If it is malignant tumor, it should be surgically resected and combined with radiotherapy after operation. There are many differences between tuberculosis and tumors, if you want to know, you can consult your doctor in detail.