Children’s night sweating may be caused by physiological factors such as overheating of the environment and thick covers, or it may be caused by tuberculosis, vitamin D deficiency rickets and so on. 1. Physiological factors: if children sleep in the room environment temperature is too high, or cover a thick quilt, may lead to increased sweating, so children will appear night sweating performance. This is a normal physiological phenomenon and can be treated without measures. 2. Tuberculosis: Tuberculosis is caused by Mycobacterium tuberculosis infection, and patients will not only experience night sweats (abnormal sweating after going to sleep, and sweating stops after waking up), but also have symptoms such as low-grade fever, fatigue, and coughing. If children have tuberculosis, they will have night sweats. 3. Vitamin D deficiency rickets: Vitamin D deficiency rickets may be caused by insufficient vitamin D due to insufficient sunlight and so on. Patients will have excessive sweating, irritability, occipital baldness, muscle weakness and other manifestations. Thus, children presenting with vitamin D deficiency rickets will exhibit night sweating. Children sweating at night, there may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.