Asthma can leak urine, mainly during exacerbations, so other causes need to be ruled out when leakage occurs during non-exacerbations. Urine leakage can occur during an acute asthma attack. The attack can be accompanied by a decrease in bladder sphincter muscle strength, unable to restrain the bladder, then part of the urine can flow out, excreted through the urethra, manifested as urinary leakage symptoms, is a common complication, belongs to the normal category. However, if symptoms of urine leakage still occur during the remission period, it is necessary to consider the possibility of other diseases, such as stress incontinence, neurogenic bladder, overactive bladder, etc. Therefore, it is necessary to consult a doctor in time, to carry out relevant psychological and physiological, such as the bladder system examination, and to follow the doctor’s instructions for treatment.