The reasons for itchy nipples in early pregnancy: firstly, it is mainly caused by hormonal changes in the body, the most common of which is due to the increase in estrogen levels. Secondly, the cause of itchy nipples in early pregnancy is mainly due to poor local hygiene and wear inappropriate underwear, can be through the local cleaning and replacement of underwear, so as to alleviate the symptoms. Again, the cause of itchy nipples should be alert to the occurrence of local skin diseases, such as local allergies, the most common is due to mosquito bites or contact with allergic substances. In addition, other diseases of the nipple may also lead to nipple itching, such as skin tumors and breast cancer, etc., so you need to pay attention to the presence of lumps, fluid and other changes in the breast skin. Change your underwear regularly, wear cotton breathable underwear, and use boiling water to wash them.