Breast Development in Girls
It is common for one breast or one nipple to develop before the other in most of the young girls. It is perfectly normal. Both the breasts will eventually catch up in its development and will be approximately the same size. There is sometimes pain and tenderness in the developing breasts; this requires no treatment unless it is very severe. At about 10 to 12 years of age all girls should be told about menstruation so that they are prepared for its onset. The child’s mother should instruct girls about the adolescence, puberty and sexual changes. It is best that she should get the information factually from an older person rather than from her friends, who may be misinformed.