Parametrium is a breast tissue other than the normal breast, and the chance of cancer is usually small, but there is a possibility of cancer, and there is no fixed time period for cancer to occur. Some of them are caused by incomplete degeneration during embryonic development, while others are formed due to emotional depression and hormonal changes in the body. If patients pay attention to regular work and rest and regulate their emotions in daily life, cancer usually will not occur, especially if the breast and parametrium shrink after the age of 40, the chance of cancer will be smaller. However, if the patient has poor self-rest and emotional regulation, and has tingling, swelling or hidden pain, or is accompanied by breast nodules or cysts, he/she should go to the breast surgery department for breast ultrasound examination in order to rule out the possibility of cancer. Therefore, people with parastetals should develop the habit of regular medical checkups to detect abnormalities at an early stage for early diagnosis and treatment. In daily life, you should maintain emotional stability, avoid irritability and irritability, and do not squeeze your breasts excessively.