Before diagnosing breast hyperplasia, it needs to be differentiated from the following diseases. Including: 1, costochondritis: commonly, there is a bulging pressure pain at the cartilage of the 2, 3 and 4 ribs, and lesions at the cartilage of the 5, 6 and 7 ribs are also seen. 2, herpes zoster: especially the chest, breast parts of the herpes, manifested as the distribution of pain along the dermal nerves, more intense, to the night, accompanied by clusters of distribution of the rash, presenting a red patchy rash – maculopapular rash – the evolution of the law of the water booze, the skin rash is generally not across the midline. 3, intercostal neuralgia: can occur in the chest of any intercostal, mainly along the intercostal with obvious pressure pain. 4, coronary angina pectoris: especially the pain in the anterior region of the heart of the elderly, to be differentiated. Breast cancer: If breast cancer is suspected, or difficult to identify, or there is a family history of breast cancer, the above auxiliary examination should be carried out to further confirm the diagnosis. If the report of needle aspiration cytology is “epithelial atypical hyperplasia”, the lump should be excised, and consideration should be given to the oral administration of triamcinolone acetonide for the prevention of breast cancer.