Nipple pain may be caused by nipple cracking, nipple eczema, nipple inflammation and so on. 1. Rupture of nipple: Nipple rupture occurs when a breastfeeding woman’s nipple is often sucked by her baby, which leads to nipple pain, so she needs to pay attention to the local hygiene and breastfeeding posture. 2. Nipple eczema: if the patient is exposed to irritating substances, local dampness and sweaty or used to wear tight underwear and other causes of nipple eczema, the patient’s nipple in the inflammation of the stimulation, will produce pain, and may be accompanied by nipple itching symptoms. 3. Nipple inflammation: If women do not wash their nipples before and after breastfeeding, the strong sucking of babies will cause nipple rupture, and bacteria will invade the body through the rupture place, which will lead to nipple inflammation. When nipple inflammation occurs, it will be accompanied by nipple pain, and there may also be redness and swelling of the nipple, localized abscesses and other symptoms. Other conditions can also cause nipple pain. It is recommended that patients with this symptom should consult a doctor in time to clarify the cause of the disease and take appropriate treatment under the guidance of the doctor.