Judge the illness according to age. Age also plays an important role in the diagnosis of breast diseases. The same symptoms may have different results for people of different ages, so the age of patients is of great value for the diagnosis of diseases. The common breast diseases of every age group are different. 20-30 years old is the high risk group of breast fibroma, and 3 1-40 years old is the high incidence period of breast hyperplasia. Therefore, the breast examination doctor asks the age and judges the condition by age.