Urinary weakness in women may be related to certain diseases, or it may be caused by certain drugs or environmental factors. 1. Diseases: Bladder neck tumor, urethral trauma, urethral malformation, pelvic tumor, rectal tumor, gynecological tumor, etc. can cause urinary weakness. Diabetes mellitus and herpes simplex virus cause damage to the sensory and motor nerves of the bladder, leading to urinary weakness. 2. Drugs: Anesthetic drugs can cause urinary weakness. Anticholinergic drugs, such as atropine, can relax the forced urinary muscle and cause urinary weakness. 3. Environmental factors: Post-operative patients, who are on absolute bed rest, may experience urinary weakness when urinating in bed due to environmental or psychological factors. Women diagnosed with urinary weakness are advised to go to the hospital for timely treatment.