It is normal to have tingling breasts in late pregnancy because the milk ducts will expand in the second trimester, resulting in milk secretion and enlargement of the breasts, which causes swelling and tingling sensations. Pay attention to hygiene, pay attention to cleaning, do not squeeze the nipple, you can gently pull outward. If you have an invaginated nipple, you can gently pull the nipple out in this way to facilitate breastfeeding after the baby is born. If the stinging pain in the breast is more obvious, it may also be caused by lobular hyperplasia, you can go to the hospital for a detailed examination, and then the symptomatic treatment, diet, pay attention to the prohibition of spicy, stimulating food.