If a woman has vulvar itching in early pregnancy, it is considered to be caused by vaginitis, cervicitis and vulvovaginitis. The common causes are as follows: 1. If a woman simply has vulvar itching without abnormal leucorrhea secretions and at the same time has local redness and swelling of the vulva, it may be due to lack of hygiene during pregnancy and bacterial local infection in the vulva can cause such performance; the patient should take a sitz bath with povidone iodine solution and use comfrey ointment for local application to stop the itching; 2. If a woman has vulvar itching and at the same time has abnormal leucorrhea secretions, if there is beanbag-like leucorrhea, it is caused by mycotic vaginitis, if there is yellow leucorrhea, it is caused by cervicitis.