The occasional stinging pain in the breast is caused by increased estrogen levels, breast hyperplasia, cellular hypertrophy, and edema of the breast cells, which do not require special treatment and only need to pay attention to diet. 2, occasional stinging pain in the breast during pregnancy, occasional stinging pain in the breast after pregnancy because the placenta and villi secrete large amounts of estrogen, progesterone, and prolactin, making the breast This is also a physiological pain, which does not require special treatment. 3, occasional breast pain after childbirth to suspect the possibility of mastitis, patients will also have fever, local lumps in the breast, which is caused by the blockage of the milk ducts, milk stagnation, so you should breastfeed as soon as possible, so that the milk does not accumulate too much in the breast. 4, cancer pain, occasional stabbing pain in the breast should also be noted If the pain is fixed and radiates to the shoulder blade, you should pay attention to it and go to the hospital for examination as soon as possible.