Night sweating may be related to a number of diseases, such as diabetes, hyperthyroidism, early cancer and tuberculosis and other pathological phenomena, but also may be physiological phenomena. 1. Pathological night sweating: when suffering from diabetes mellitus, hypoglycemia, hyperthyroidism can easily lead to the imbalance of the function of the autonomic nerve, which can lead to a lot of night sweating. Night sweating can occur in the early stage of some cancers, such as lymphoma. Typical symptoms of tuberculosis also include weakness and night sweating. 2. Physiological night sweating: it usually occurs in infants and young children because their metabolism is relatively vigorous while the regulation function of autonomic nerves is not very perfect, so it is easy to have night sweating phenomenon, especially when there is too much activity before going to bed. When night sweating occurs, it is recommended to change the sleeping environment first, such as changing to a thin blanket. If the symptoms are not relieved or continue to worsen, it is recommended to go to the hospital to find out the cause of the problem and have the relevant treatment.