Nipple tingling in pregnant women may be related to changes in hormone levels in the body, but it may also be caused by pathogenic bacterial infections. After pregnancy, due to the increase in the level of estrogen and progesterone in the body, there is a possibility of proliferation of breast follicles and lobules, which in turn leads to the phenomenon of breast enlargement. Some pregnant women may feel mild breast tenderness, nipple pain and other symptoms. This is a normal physiological phenomenon and does not require special treatment. In addition, during pregnancy, the resistance of pregnant women is relatively weak, some pregnant women have nipple tingling accompanied by symptoms of redness and swelling of the nipple, we need to consider the possibility of pathogenic bacteria infection. Therefore, pregnant women with symptoms of nipple tingling are advised to consult a doctor in a timely manner, under the guidance of the doctor to identify the specific causes of the disease and give targeted treatment.