M.D.
Hi Marybeth,
I have a younger sister who started developing breasts at the age of 6 and started her period when she was 7 almost 8. The doctor suggested that my mother could put her on some type of medication, but my mother was afraid of what the side affects would be later on and chose to let nature run its course. She is now 16 almost 17 and has normal periods with no problems. Of course being so young to get your period is quite an adjustment but with a supportive mother she did just fine. This was several years ago and who knows what other kind of advice or medications the doctors will suggest now. Just check out all possibilities, but just wanted to let you know that unfortunately it is not all that commom for puberty to start young!! Also the comment about being overweight causing puberty to start early can be true but my sister was actually quite small for her age and actually underweight so I don't think you can pinpoint it on weight. Good luck to your sister and daughter!!