Benign breast nodules of two centimeters can be treated conservatively or surgically, while malignant nodules need to be treated with surgery. Breast nodules of two centimeters belong to the larger breast nodule lesions, due to breast cysts, mastitis caused by breast nodules can be treated conservatively with anti-inflammatory drugs such as amoxicillin, levofloxacin, etc., and at the same time, with the local hot compresses and other physical means of relief treatment. If the effect of conservative treatment is not good or the symptoms are serious, the nodules need to be removed by surgery. If the malignant breast nodule is caused by breast cancer, when it grows to two centimeters, it needs to be removed through total excision or partial excision surgery to avoid spreading and metastasis. It is important to avoid menstruation during the surgery to avoid affecting the recovery of the wound. It is recommended that patients with breast nodules consult regular hospitals for a clear diagnosis, and then under the guidance of a professional physician for reasonable and standardized treatment to ensure that the treatment effect improves the quality of life.