Symptoms of an overactive bladder, or OAB, include nocturia, which means going to the bathroom several times at night, and occasional urine leakage, particularly when laughing, sneezing or moving actively, according to Healthline. Some people experience nocturia, although daytime urination is normal.
Besides OAB, other possible causes of nocturia include drinking excessive fluids before bedtime, diabetes, bladder obstruction, bladder infection or congestive heart failure, states Healthline. Diuretics and other medications that increase urine production may also lead to nocturia. Edema or swelling in the legs is another potential cause.
Polyuria refers to higher nighttime urine production than normal, whereas low nocturnal bladder capacity is a condition wherein an individual is not capable of holding sufficient fluid amounts at night, explains Healthline. Doctors recommend minimizing fluid consumption before sleep to prevent OAB at night. Other suggested lifestyle changes include avoiding caffeine and alcohol beverages and keeping a healthy weight. To reduce nocturia caused by edema, a person should elevate her legs throughout the day when possible, or wear compression stockings to prevent fluid accumulation.
Doctors suggest keeping a journal that records the amounts and timing of fluid intake as well as the number of times a patient urinates during a 24-hour period, says Healthline. Anyone who fails to control nocturia through lifestyle changes should consult a doctor to undergo testing and possible medical treatment.