Pregnant anus itch is often due to the following reasons: 1, hemorrhoids: in pregnancy is particularly prone to hemorrhoids, mainly manifested in the anal part of the itchy discomfort, wet unclean and other symptoms, and sometimes there is a swelling out, you can go to the hospital general surgery or anorectal surgery to make clear. If the disease need to actively adjust the dietary structure, and with medication to improve the symptoms of sitz bath treatment, such as can not eat spicy food, appropriate intake of fresh fruits and vegetables, sitz bath solution can choose to dilute the warm potassium permanganate water or Chinese medicinal preparations, etc. 2, perianal eczema: the most common cause is to wash the anus is not timely and do not diligently change the underpants, you can be anally coated with medication, such as erythromycin ointment and other treatment, some patients can with medication sitz bath treatment, and some patients can with medication sitz bath. Part of the patients can be treated with medication to relieve the symptoms, such as diluted warm potassium permanganate water or Chinese medicinal preparations and so on.