Breast Cancer in China According to the data released by the National Cancer Center in 2012, the peak age of breast cancer incidence in Chinese women is about 10 years earlier than that in the West. While the peak age of incidence in foreign countries is 55-65 years old, it is around 45-55 years old in China, and in recent years, it has even advanced to 35 years old. How can a woman determine if a breast lump is cancerous? Obviously, if a woman can determine with a high degree of certainty whether a breast lump is benign, non-cancerous or cancerous, then she can be spared a lot of worry and anxiety. Unfortunately, distinguishing between benign and malignant lumps can be difficult, and there is no clear and reliable difference between a benign lump and cancer. Most people with breast cancer do not have any specific symptoms. Sometimes, breast cancer patients feel mild pain or tingling, but benign cysts in the breast are more likely to cause uncomfortable symptoms and pain than cancerous lesions. However, one important feature of breast cancer is the inverted nipple. If cancer arises around the nipple, it may cause nipple inversion, which does not happen with benign breast lumps. If one or both of your nipples have been inverted since puberty and you can pull them out easily, then there is nothing to worry about; but if one of your nipples becomes inverted later and cannot be pulled out easily, then this is a sign that there may be cancer near the nipple. Rarely, a cancerous lesion may cause the nipple to bleed or bleed a rusty, blood-containing substance, along with pain. Sometimes you may also notice that the skin on the surface of the tumor has an orange-peel appearance or that the skin on the surface of the tumor sinks into the adhesions when you push on it with your hand. Of course, this is rare, but it can indicate cancer, so it is important to see your doctor if you see orange peel or skin invagination (even if you don’t see or feel a lump underneath). Remember: if you find any breast lump (regardless of when you have the symptoms I mentioned), you should go to the hospital immediately.