In daily life, you should maintain a reasonable diet, regular rest and relaxation, avoid overwork and mood swings, and engage in appropriate physical exercise and sports. If you have breast cancer in your family, you should have regular check-ups. Women with BRCA gene mutation may be considered for preventive total mastectomy. Try to avoid crowded places or wear a mask to prevent TB. If you find a lump in your breast with pressure and pain, you should seek prompt medical attention.