N60-N64: Disorders of breast

N62: Hypertrophy of breast

The breast is made up of fatty tissue, connective tissue and the mammary gland. Milk is produced in the mammary gland during and after pregnancy so that the child can be fed.

The breast can become enlarged for a number of different reasons, for example as a result of medication. Changes may also occur to the breast when sex hormone levels in the body increase or decrease. The level of sex hormones can fluctuate during puberty or as a result of a number of different conditions.

Enlarged breasts can sometimes cause symptoms. You may experience pain in the back or shoulder. It is also possible that you have no symptoms at all.