During late pregnancy, if you experience pain in one breast, you should first feel it to see if there are enlarged breast nodules and if there is any redness or swelling. If you have breast enlargement or lobular hyperplasia, or if you have an inflammatory infection, you will experience pain in one breast. In late pregnancy, there should be tingling or swelling in both breasts, which is affected by the hormonal secretion in the body and causes this phenomenon. In late pregnancy, there is also the expansion of the milk ducts, which can easily lead to breast pain. On the surface of the breast, you will be able to see cyanotic blood vessels or the areola enlarges and the areola color deepens, which are normal physiological manifestations and do not require special treatment. If the stinging pain is more obvious, the first consideration is inflammation, you should promptly go to the hospital to exclude pathological manifestations, and then the symptomatic treatment.