There are many reasons why there is a hard lump in the right chest without pressing pain, which are analyzed as follows: 1. Enlarged lymph nodes, lymph nodes will be enlarged and painful when they are stimulated. After the inflammation disappears, the swollen lymph nodes are difficult to disappear, as well as have mobility, smooth edges and no pain. Do not massage physiotherapy, can be surgically removed. 2, breast hyperplasia, the patient chest lump can move, no adhesion with the surrounding tissues, in the pre-menstrual and menstrual period will have swelling and pain, but after the end of menstruation pain will disappear. If the pain is obvious, it can be treated by taking Easy Pills or Breast Fetish Elimination, and if the lump is bigger, it can be removed by surgery.3. Breast Fibroid, most of the hard lumps do not have any pain, but they will suddenly increase in size during the pregnancy and breastfeeding period. The disease needs to be surgically removed immediately after diagnosis.4. Breast cancer, cancer patients do not have pain in the early stage and need early surgical treatment.