Breast pain and lumps may be physiological lumps, acute mastitis, cystic breast hyperplasia, breast fibroadenoma, breast cancer, breast trauma and so on. 1. Physiological lumps, mostly seen during puberty, increased estrogen levels, breast lumps with pain, is a normal physiological phenomenon and does not require special treatment. 2. Acute mastitis, most common in breastfeeding women, is an acute purulent infection of the breast tissue, early on there is only a breast lump with pain, and there is a localized increase in skin temperature. 3. Cystic hyperplasia of the breast, which occurs in women of childbearing age and is characterized by periodic pain in the breast with the formation of hyperplastic lumps. The degree of pain and the size of the nodule change with the menstrual cycle, i.e. it is aggravated during menstruation and relieved after menstruation. 4. Breast fibroma, which is more common in young people, manifests as a lump in the breast and can be painful. On examination, the surface of the lesion is smooth, with clear boundaries and good mobility. 5. Breast cancer, with no obvious characteristic performance in early stage, and irregular shape, hard and poor mobility lumps can be touched in the breast in late stage, which can be accompanied by pain and orange peel sign or dimple sign. 6. Mammary gland trauma: the breast is hit by external force, there may be damage to the soft tissue of the breast, mammary hematoma, etc., and there will be breast lumps with pain. If the breast is painful to touch and there is a lump, it is recommended to consult the hospital as soon as possible for standardized examination and treatment.