Whether a breast nodule is serious or not needs to be judged with the nature of the pathology. Benign breast nodules of 13 x 7 mm are usually not serious, but if they are malignant, they are more serious and need timely treatment. Breast hyperplasia, breast fibroadenoma and other diseases can cause the occurrence of breast nodules, usually such nodules are benign lesions, you can be guided by the doctor’s treatment, along with local hot compresses and massage, to relieve the symptoms of breast nodules. These benign breast nodules are usually not serious and can be cured after treatment. Malignant nodules caused by malignant tumors, such as breast cancer, can lead to local or distant metastasis of the malignant tumor cells if not treated in time, resulting in serious damage to body organs and endangering the patient’s life. When malignant breast nodules occur, the lesion should be removed through surgery in time to avoid aggravation. There are many causes of breast nodules, it is recommended to consult a doctor in time after the discovery of breast nodules, to clarify the nature of the breast nodules and then standardize the treatment under the guidance of the doctor.