Breast cancer stage III mainly has symptoms such as breast lump, breast skin abnormality, nipple and areola abnormality. 1. Breast lumps: in the early stage of breast cancer, patients usually have breast lumps, which are mostly solitary, hard, with irregular edges and non-smooth surface. Most of the breast cancer patients’ breast lumps are painless, only a very few of them will be accompanied by different degrees of pain; 2. Breast skin abnormality: the lump will invade the ligaments, which will cause the skin to be concave and shaped like a dimple, which is called “dimple sign”. When cancer cells block the lymphatic vessels, the skin of the breast may look like orange peel, which is called the “orange peel sign”. If you are diagnosed with inflammatory breast cancer, the skin of your breast will become red, swollen, hard and thickened; 3. Abnormalities of nipple and areola: it will lead to nipple concavity and deviation, and itchy skin around the nipple will also appear. In addition, symptoms of metastatic lymph nodes can also appear in stage III of breast cancer. Breast cancer patients should go to the hospital in time and under the professional guidance of doctors, carry out targeted diagnosis and treatment.