Girls with early puberty who start treatment with certain hormone drugs tend to get their first period sooner after stopping treatment if their bones are more mature when they begin the therapy.

If a girl's bones mature faster while she's on treatment for early puberty, she's likely to start her period sooner after stopping the medicine — even if we account for how mature her bones were to begin with.

How long a girl takes a certain puberty-delaying medicine doesn’t change when her period starts after she stops the treatment — her body picks up where it left off, no matter how long she was on the drug.

For girls who get early puberty and are treated with certain hormone shots, their first period usually comes about a year after stopping treatment — most within one to two years — so doctors can expect when things will start up again.

Girls with early puberty who get a certain hormone treatment tend to have slower bone aging—about 1 year less—compared to girls who don’t get the treatment.

Girls with early puberty who take certain hormone treatments might grow more slowly later on if their bones are maturing too fast — this could mean they stop growing sooner than others.