Hi there. My name is jennifer. i am 35 years old..and my husband and i are just now..expecting our first child. As for me, I too started my period at 11. By chance, is your 15 yr old daughter you are speaking of, is she by chance really active in a particular sport or do gymnastics...or anything of that nature? I ask, because I have heard over the years, that girls who are very active..like in some kind of sport or does gymnastics..or just really active, that..that can cause delay in starting of period...OR..if the girl has already started, if she too is active and/or in some sort of sport activity that they rarely have periods. My guess is has something to do with that. If this isnt the case with your daughter...I would suggest contacting her pediatrician to see what they might say about it. But...I would venture to say...that will be one of their first questions...is that of what I asked..about sports or being really active in some sort of activity. OR...a great resource....which I use for EVERYTHING...is Google. Go to google..in the search field, put something like......"Reasons why my 15 yr old daughter has not started her period"..and see what all it pulls up. Im going to google real quick for you...and will advise you...on what I find as well, now. ***READ BELOW***
Best Regards,
Jennifer ********************************************************************
Dr Morrison's advice
95% of girls have their first period (menarche) between 11 and 15 years, and tend to take after their mothers in the timing of this. Most of the remaining five percent start between 10 and 16 years. As long as secondary sexual characteristics such as breasts (and a little pubic and underarm hair) have begun to develop by 14 years, periods will definitely follow on and there's no need to worry.
However, anyone over 14 years who hasn't begun to develop secondary sexual characteristics, should probably be checked out by a hormonal specialist (endocrinologist) just to make sure there isn't a problem that may need treatment. Glandular imbalance is usually from the thyroid gland, the ovaries or pituitary gland in the brain, but is extremely rare.
In a very few cases, there may be an anatomical problem where the sexual organs have not formed properly e.g. inadequately developed womb, or possibly an unbroken hymen. Rarer still are chromosome abnormalities such as Turner's syndrome, but this sort of condition would have been known about from birth.
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