Tuberculous lymphadenitis can present with localized clinical symptoms and systemic symptoms. Complications can also occur. 1. Local symptoms: local lymph node pain, redness, swelling, fever and so on. Ultrasound of lymph nodes can be done to clarify. 2. Systemic symptoms: such as low fever in the afternoon, fatigue, night sweats, hemoptysis, emaciation and other symptoms. 3. Complications: for example, in pulmonary tuberculosis, coughing, sputum, hemoptysis; in intestinal tuberculosis, diarrhea, abdominal pain; in renal tuberculosis, frequent urination, urinary urgency, urinary pain and so on. When these clinical symptoms occur, it is recommended that attention should be paid to the investigation of tuberculosis, under the guidance of the doctor for standardized treatment.