This condition can be considered normal if it occurs occasionally in children under the age of twelve, but if it occurs regularly, it is recommended to go to the hospital for consultation. In the case of adults who wet the bed at night without knowing it, it may be caused by overexertion or certain diseases, or it may be caused by insufficient anti-diuretic hormone secreted by the pituitary gland, or by holding urine, too much relaxation of the bladder sphincter, drinking too much water, such as kidney deficiency, urinary frequency and urgency, urinary tract infections and other more serious diseases. In addition, it may also be related to too much mental stress. It is recommended that patients exercise more, pay attention to personal hygiene, relax, drink less water before resting at night, and observe whether the frequency of bedwetting is reduced, but for insurance purposes, it is recommended that patients go to the hospital for a series of detailed examinations such as CT or abdominal ultrasound.