Shape panties occasionally wear to the body will not have any harm, long-term wear may cause vulvovaginitis, urinary incontinence, folliculitis and other hazards. 1. triggering vulvovaginitis: long time wearing shaped panties, there is a tight crotch wrapped buttocks, so that the body secretion of vaginal secretions, leucorrhoea, menstrual blood for a long time in the wet and stuffy environment can not be emitted, prolonged stimulation of the vulva may lead to vulvovaginitis, vulvar itchiness, redness, swelling, burning pain and other discomforts. 2. Urinary incontinence: women’s urethra has short, wide, straight, weak muscle strength and other characteristics, long-term plastic panties, will increase intra-abdominal pressure, the bladder will be pressed forward and downward, the urethra and the bladder connection of the posterior corner of the increase in the straightening of the urethra and bladder, can not withstand the increased abdominal pressure when the impact of the urine, for the pelvic floor muscle relaxation of the female, it may increase the probability of urinary leakage. 3. Folliculitis: long time wearing plastic underwear, so that the skin can not breathe normally, sweat can not be evaporated in time after sweating will cause pore clogging, causing folliculitis, skin becomes rough. It is recommended to wear loose and breathable cotton underwear, do not wear plastic underwear for a long time.