The main manifestations of breast cancer skin metastasis are as follows: 1. orange peel-like changes, i.e. orange peel-like signs, mostly caused by tumor cells blocking the subcutaneous capillary lymphatic vessels, resulting in skin edema and depression at the hair follicles; 2. abnormal nodules in the skin around the breast, when the skin is widely invaded, most hard small nodules or small strips can be formed in the epidermis; 3. dimple sign, i.e. patients appear dimples of the skin similar to dimples, mostly It is caused by tumor cells invading the skin ligament. It is suggested that patients should go to hospital for biopsy and pathological examination in time to confirm the diagnosis.