Itchy nipples during pregnancy can be caused by elevated hormone levels, bile buildup in the liver, or nipple eczema. You need to consult a doctor for relevant examinations to clarify the causes and then take targeted measures to relieve the symptoms. Common causes and treatment measures 1. Elevated hormone levels: Elevated levels of estrogen and progesterone stimulate the expansion of breast ducts and glandular hyperplasia, which gradually increases the size of the breast and makes the nipple more sensitive. When rubbing with clothing, itching can occur, sometimes with breast swelling, pain, are normal, generally do not need to worry too much. You can change to soft, breathable cotton clothing, avoid corsets with steel rings, and change them regularly. Use warm water to wash your nipples and keep your breasts clean and dry. If nipple rupture occurs, use erythromycin ointment as prescribed by the doctor to prevent infection. 2. Intrahepatic bile stasis: mainly due to bile accumulation in the gallbladder, causing high bile acids, which can lead to yellow skin staining, itching and other symptoms, which need timely treatment. Avoid overeating, and greasy, spicy food, such as fried food, etc.; 3, nipple eczema: due to decreased resistance or allergies, etc., manifested as papules on the areola or under the breast, with itching, flaking and other symptoms. You can take zinc glycyrrhiza granules and calcium gluconate chewable tablets as prescribed by your doctor, and apply topical glycopyrrolate lotion and mometasone furoate ointment. Avoid eating strong tea, lobster and other stimulating food; 4, improperly dressed underwear: If the quality of underwear is substandard or chemical fiber content is high, it may contain harmful ingredients that stimulate itching nipples, so women must be quality and safe underwear after pregnancy, pay attention to the choice of cotton material. Note that in addition to itching, need to avoid violent scratching or excessive cleaning to prevent damage to the skin.