[How different is a nodule from a cancer? How to tell if a nodule is benign or malignant? ]#Can breast nodules develop into breast cancer#? Many friends heard that they had a nodule after physical examination, for fear of cancer. According to the doctor, a nodule is a small mass, a slightly larger mass is called a mass, and can grow anywhere in the body. Common thyroid nodules, breast nodules, lung nodules, etc., benign nodules are not cancerous. Is the nodule serious? How to distinguish between nodules and cancer? How to judge whether a nodule is benign or malignant? cr: