If there is a hard lump in the breast that is not painful but is mobile, it is more likely to be a breast fibroid. This is a benign disease, which is very common in young patients, and the cause is related to the unbalanced expression of estrogen and progesterone levels in the body, especially in the age group of 20-25 years old. If the lesion is relatively small, no special treatment is needed, but regular follow-up and observation is required, and breast color ultrasound should be repeated every 3 months to half a year. For fibroid tumors that gradually increase in size or show obvious pain, the most effective treatment is to choose surgery to remove the lesion, and depending on the site of occurrence, choose a transareolar incision or a radial incision of the breast. Regular postoperative dressing changes are recommended to prevent localized infections.