Early symptoms of breast nodules generally include swelling and pain in the breast area, nipple discharge, and are generally determined by the nature of the breast nodule, which is categorized into benign and malignant. 1. Benign breast nodules: Patients with benign breast nodules may have a large mobile lump in the breast. Some patients may have swelling and pain in the breast area at the time of menstruation, which will be aggravated during menstruation, and then gradually decrease or disappear after menstruation, and the growth rate is relatively slow. 2. Malignant breast nodule: malignant breast nodule grows faster without obvious pain, and may have symptoms such as nipple overflow or nipple inversion, etc. During ultrasound examination, it will be found that the boundary around the nodule is not clear and the mobility is poor. If the patient has symptoms of breast nodules, he should go to the hospital in time to do ultrasound examination of the breast area, and if necessary, carry out further pathological biopsy to clarify the nature of breast nodules and then do the relevant treatment.