Being able to digest milk is so strange that scientists say we shouldn't really call lactose intolerance a disease, because that presumes it's abnormal.

能消化牛奶这一功能真的太奇特了。科学家们甚至说我们不应该把乳糖抗性当成一种疾病，那样的话首先就把它看做不正常了。

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Atypical ductal hyperplasia is abnormal cells that grow in the milk ducts of the breast.

非典型腺管增生是一种生长在乳导管里的不正常细胞。

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With a cow's-milk allergy, the immune system has an abnormal reaction to milk protein.

而对牛奶过敏是指免疫系统对牛奶蛋白质有异常反应。

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Even in the precancerous stage, called ductal carcinoma in situ (DCIS) when abnormal cells are confined to a milk duct, physicians almost always advise women to have a lumpectomy or mastectomy along with radiation, because about 20% of the 65, 000 cases of DCIS found every year in the U.S. become invasive cancer.

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In DCIS, abnormal cells multiply and form a growth within a breast milk duct .

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