Chronic enuresis, or bedwetting, in a 7-year-old child can be caused by a variety of factors, including genetics, hormonal imbalances, a small bladder capacity, or an underlying medical condition such as a urinary tract infection or sleep apnea. The physician may order diagnostic studies such as a urinalysis to check for a urinary tract infection, a kidney function test to check for any kidney-related issues, and a bladder ultrasound to check the bladder size and function. The physician may also recommend a sleep study to check for any sleep-related issues that may be contributing to the bedwetting. Treatment for chronic enuresis can include behavioral interventions such as limiting fluid intake before bedtime, waking the child up to use the bathroom during the night, and rewarding the child for dry nights. The physician may also recommend medication such as desmopressin to reduce urine production at night, or imipramine to help relax the bladder muscles. In some cases, the physician may recommend a bedwetting alarm, which can help the child learn to recognize the sensation of a full bladder and wake up to use the bathroom.