The smell of urine on women’s pants may be normal, caused by physiological reasons, or abnormal, related to urinary tract infections, urinary incontinence, gynecological inflammation and other diseases. Physiological causes can be improved by changing clothes diligently, paying attention to cleanliness and regulating diet, while disease causes require targeted treatment.1. Physiological: This is normal, as the female reproductive tract is short, there may be residues of urine, feces, menstrual blood and vaginal secretions on the underwear, if there is no timely replacement of cleaning clothes, in the warm and humid environment of the pubic area, it is very likely to ferment into an unpleasant urine smell, in addition Women drink too little water, urine concentration, more protein intake, will also lead to increased urinary odor, generally no other uncomfortable symptoms; 2, urinary incontinence: women are more common is urinary incontinence belongs to the pressure, is due to damage to the pelvic floor muscle after childbirth, mainly manifested as coughing, sneezing, exercise or lifting heavy objects often appear unconscious urine outflow, therefore leading to urinary odor on the pants, this situation Usually there is no urinary frequency, urinary urgency, urinary pain and other symptoms, this situation is normal; but if for no stimulation appears urinary incontinence, or accompanied by limb movement and sensory disorders, may be abnormal, consider caused by nerve damage, need to go to the neurology department; 3, urinary tract infection: urinary tract infection is mostly caused by bacteria, viruses, trichomonas and other infections, mainly manifested as urinary frequency, urinary urgency, urinary pain and other signs of urinary tract irritation, may There are also symptoms such as redness and swelling of the urethral opening, purulent discharge from the urethra, urine overflow when urinary urgency, as well as urethral secretions on the pants, which can lead to the smell of urine on the pants; 4, vaginal infection: the female urethra compared to men has the characteristics of short, wide and straight urethra, and the location of the urethra is close to the urethra, such as the occurrence of infection, vulvar itching, increased leucorrhea, odor, color change and other symptoms, infection involving the urethra can also The infection involving the urethra can also lead to symptoms of urethritis. Vaginal secretions and urethral secretions can cause a urine smell on the pants. If you suspect that it is caused by a disease, it is recommended to go to the hospital in time and cooperate with the doctor to actively treat it, most of which can be cured. In daily life, you should have good habits, regular work and rest, pay attention to personal hygiene, change clothes regularly, you can wash your vulva with warm boiled water, you don’t need to use too much gynecological detergent.