It started happening to my year-old daughter this spring. The pants I hemmed up in June were too short by October, despite only being washed once. As a loving mom and adolescent medicine specialist, these are heady times for me. I am proud of my daughter and thrilled to see her embark on this road toward womanhood.
Here's an overview of the major physical changes girls can expect as they go through puberty:. Girls usually begin puberty between the ages of 8 and 13 years old. The earliest sign of puberty in most girls is the development of breast "buds," nickel-sized bumps under the nipple. It is not unusual for breast growth to start on one side before the other. It's also common for breast buds to be somewhat tender or sore. Uneven breast growth and soreness are both totally normal and usually improve with time.
There is no perfect shape or size for breasts. Normal breasts can be large or small, smooth or lumpy, and light or dark. Your breasts start growing when you begin puberty.
I do not think you need a second opinion at this time. A breast bud generally does not suggest that there are any significant hormonal problems or that this is related to breast cancer if there is a family history of breast cancer, I would mention it to your child s doctor. By having her examined, the doctor gets a good history, checks to see if there are any other signs of puberty, any evidence of secondary sexual characteristics developing, or other possible causes for the lump. Reassurance is appropriate along with just observation over time. If the area seems to be infected, seems to be getting larger, or discharge is noted from that nipple, then I would have her reevaluated.