Breast swelling and pain is not necessarily pregnancy. There are many reasons for breast swelling and pain, including pregnancy, endocrine disorders, breast enlargement and so on. If there is a lump in the breast when the pain is severe, breast cancer cannot be ruled out. It is best to go to the hospital for a comprehensive examination and reasonable treatment after identification. It is normal to have breast tenderness during pregnancy, which can disappear in the third trimester of pregnancy. It is best to have an ultrasound examination in time to determine breast enlargement and also to make a preliminary diagnosis of whether there is a tumor. If breast enlargement needs to be regulated with Chinese medicine, usually pay attention to reasonable endocrine regulation to avoid endocrine disorders, which can promote the recovery of breast enlargement.