Breast pain and long chest hair are two different symptoms. Breast pain may be related to physiological cycle, breast disease, etc., and long chest hair may be related to hormone level, etc., which need to be analyzed specifically. 1. Breast pain: If it is female breast pain, it may be related to traumatic stimulation, breast hyperplasia, mastitis, breast cancer and other diseases, affected by the physiological cycle, before menstruation, the breasts may also appear pain and sensitivity phenomenon. If you are a male patient, you can consider that the pain is caused by breast hyperplasia, trauma and other conditions. 2. Growing chest hair: Whether male or female, as there are also hair follicles in the chest, there will also be hair tissue growth, as long as the hair is not a lot of hair, is a normal phenomenon. If the chest hair is more luxuriant, may be androgen secretion is too exuberant caused by such patients of pubic hair, armpit hair may also be relatively lush. It is recommended that patients seek timely medical treatment, and need to do a systematic examination in order to clarify the cause of the disease.