Breast swelling after touching to consider three factors: 1, the patient is not in the menstrual period before and after, because before and after the menstrual period of the human body is susceptible to hormonal changes, hormonal instability changes will affect the breasts, will occur after touching the pain or persistent pain symptoms. 2, the patient is not sexual behavior, because of the special nature of the breast is not only a breastfeeding organ, but also a point of sensitivity of the sexual stimulus. In a short period of time after sexual intercourse, the sex hormones secreted by the human body have not completely disappeared, and the excitement and congestion of the breasts have not subsided, which causes the illusion of swelling and pain after touching the breasts, which is more common in patients who have an inharmonious sex life. 3, check whether the underwear is appropriate, some women are obsessed with the pursuit of the beauty of the breasts, and they often wear tight and gathered underwear, and the long term wearing of too tight underwear results in the poor circulation of the breasts, which also causes the symptom of swelling and pain after touching. This can also lead to symptoms of breast swelling and pain. It is recommended that if you have symptoms of breast swelling and pain, you should have a relevant examination in time to clarify the cause of the problem and treat it in time.