Breast cancer is not an incurable disease and is expected to be one of the first malignant tumors to be tackled by mankind. Breast cancer predisposing groups include: 1) two or more patients with breast cancer in the immediate family; 2) early menarche (less than 12 years old) or late menopause (more than 50 years old); 3) late pregnancy, the first child after 35 years old, or no pregnancy over 40 years old; 4) previous cancer in one breast; 5) obesity, especially postmenopausal weight gain or diabetes; 6) previous functional uterine bleeding or uterine body cancer or ovarian cancer; 7) breast hyperplasia with breast cancer; and 8) breast cancer. 7. Breast hyperplasia with active ductal or lobular atypical hyperplasia; 8. Some rare factors such as radiation exposure to the breast. Regular self-consultation of the breast together with regular check-ups can help to detect breast cancer at an early stage. Breast cancer requires comprehensive treatment, including surgery, chemotherapy, radiotherapy, endocrine therapy and biologic targeted therapy, etc. Different patients need individualized treatment plan. Proper treatment can not only bring the disease under effective control, but also get satisfactory cosmetic needs and achieve both physical and psychological health. Thyroid cancer is not a terrible disease, and most patients’ lives will not be directly threatened if treated timely. Surgery is the most effective treatment for thyroid cancer and long-term endocrine therapy is required after surgery. Thyroid and breast diseases are related to the endocrine system of the body, so a good attitude, healthy lifestyle and timely communication between doctors and patients are the best remedies to overcome the disease.