We find that there are more and more young breast cancer patients. Some women in their 20s and 30s are also developing breast cancer. Why do young women develop breast cancer? In addition to the influence of lifestyle habits, there are some risk factors that deserve extra attention. There are 4 major risk factors for breast cancer in women under 45 years old Some young women are more likely to develop breast cancer than their peers. According to the Centers for Disease Control and Prevention (CDC), women under the age of 45 are at increased risk for breast cancer if they have: 1. A close family member who has breast or ovarian cancer, especially under the age of 45, or multiple relatives who have the disease. Have specific genes in their body, such as BRCA1 and BRCA2, which can increase the risk of developing breast cancer many times. 3.Have had radiation treatment to the breast before the age of 30. 4. Have precancerous breast lesions, such as atypicalhyperplasia. If you have any of the above risks, it is best to talk to your doctor to see if you need to have breast cancer screening – mammogram (mammogram) in advance. Beware of common breast cancer symptoms: What are the symptoms of breast cancer? Stand in front of a mirror, put your hands on both sides of your body and observe both breasts while doing pressure. If the following changes occur, you need to be alert: one breast is larger than the other breast, the skin of one breast is red, or the skin is uneven and orange peel-like, there is a depression in the nipple, and there is discharge from the nipple, especially bloody discharge, there is a hard lump in the breast to touch. Of course, the appearance of these symptoms does not mean that it is breast cancer. For example, most of the hard lumps in breast are benign. However, you should tell your doctor in time for further examination. Do 5 points to prevent breast cancer Doing the following 5 points can help to prevent breast cancer. 1. Do not drink alcohol, or drink within 3 drinks per week, can reduce the probability of breast cancer. 2. Stay in shape and avoid obesity. Especially after menopause, obesity can increase the risk of breast cancer. 3.It is better to exercise for more than 5-7 hours a week, including walking and jogging. 4.Diversified diet, it is recommended to eat more vegetables and fruits, but meat, poultry, fish and seafood should also be eaten in a balanced way. 5, after the birth of the mother is best to breastfeed the child. Studies have found that breastfeeding for more than 1 year may reduce the probability of breast cancer.