The 70-year-old elderly night urination 4 times belongs to the frequency of urination, occasional occurrence may be normal, with too much fluid intake has a relationship, if long-term this is not normal, men and prostate hyperplasia have a certain relationship, women are mostly pelvic floor relaxation or overactive bladder caused by the disease. 1. If you drink a lot of water before going to bed, or consume a lot of fluids at night, it may lead to an increase in nocturia, which is a normal physiological phenomenon. 2. Elderly men with prostate enlargement may experience increased nocturia, usually greater than 2 times, and may be accompanied by symptoms of frequent urination, urgency, and difficulty urinating. 3. Elderly women can experience leakage of urine due to relaxation of the pelvic floor muscles, leading to increased nocturia. Patients with overactive bladder can experience urinary frequency, urgency, and increased nocturia due to bladder forcing in unstable contractions. Increased nocturia may also be caused by other factors. After excluding physiological factors, it is recommended to go to a regular hospital for further examination to determine the specific cause of the disease, and then give appropriate treatment for early recovery.