Itchy nipples can be caused by improper nipple cleaning, excessive friction, some breast diseases, etc. You need to pay attention to hygiene, wear proper underwear, and treat the symptoms and causes. 1. If the nipples are not cleaned properly and bathing is not frequent, it will leave stains on the nipples, which will stimulate the skin around the breasts and make the nipples feel itchy, so you need to pay attention to the hygiene around the breasts, bathe and change underwear diligently. If the underwear is too small and rubs the nipple often, it will also make the nipple itchy, so you need to change the appropriate underwear in time to reduce the friction on the nipple. 2. Some breast diseases such as breast eczema, breast cancer and neurodermatitis are. Breast eczema is most common in breastfeeding women, often appearing on the nipple, areola and breast, accompanied by itching, if it only occurs in the nipple area, called nipple eczema. A small number of patients with breast cancer will have the manifestation of nipple itching, which is manifested as red, swollen, hot and painful skin, thickening and roughness, as well as nipple itching, burning sensation and areola eczema-like changes. 3. Neurodermatitis can also lead to itchy nipples, which is a chronic skin disease, mainly due to too much pressure, often late at night and caused by the patient will scratch the skin because of itching, serious cases lead to pus breakout of the skin, and even infections, so daily life to avoid scratching the skin, you can apply antifungal ointment to relieve. Itchy nipples need to be examined in a timely manner, to the regular hospital for examination and treatment, the use of medication is also to be used under the guidance of the doctor.