If women often wear tight underwear is not good for the body, it is easy to cause inflammation of the reproductive system and affect blood circulation. 1. Inflammation of the reproductive system: women wearing too tight underwear for a long time is not only uncomfortable, but may also affect their health. Women’s private parts themselves have more secretions, and wearing too tight panties for a long time will lead to poor ventilation in the lower body and long-term moisture, which is easy to breed bacteria and lead to vaginitis, urethritis and so on. 2. Affecting blood circulation: wearing tight underwear for a long time will cause poor circulation of local blood and lymphatic system, which will lead to lower limb edema. On the other hand, tight underwear will rub the groin, leading to hyperpigmentation and affecting aesthetics. Women are advised to choose comfortable cotton underwear according to their body type, change their underwear in time, keep their private parts clean and hygienic, and seek medical advice if they experience any discomfort.