The symptoms of cystic hyperplasia in the breast are the disruption of hormone levels in the body and the imbalance of estrogen and progesterone, resulting in excessive hyperplasia of the breast tissue, which manifests as pain, swelling and tingling in the breast. The pain can be easily triggered by stress or anger, and can be treated with oral masturbation. The local pectoralis major muscle strain can also appear painful symptoms, such as excessive upper limb activities, lifting heavy objects, etc. In addition to pressure pain will also be accompanied by upper limb activities that cause pain, you can apply local heat, the symptoms will slowly improve after a few days. Mastitis can also cause local pain symptoms, accompanied by redness, swelling, heat and pain, especially if the symptoms are caused by local pressure and accumulation of milk during lactation, which requires timely lactation treatment to avoid septic infection. Regardless of which condition causes the pain, it is recommended to visit a hospital to confirm the diagnosis before treatment.