18 doctors weighed in:

My daughter is 12 and has had prolonged periods for the past 4 months. She is at 17 days and counting right now. Her pediatrician said not to worry.?

18 doctors weighed in
Dr. Daniel McGee
Family Medicine
11 doctors agree

In brief: Second Opinion

Sometimes prolonged periods can happen and for a short time and then normalize.
However excess bleeding for up to 17 days can cause significant blood loss and may be a sign of something else. To be certain i would see an ob/gyn for further evaluation.

In brief: Second Opinion

Sometimes prolonged periods can happen and for a short time and then normalize.
However excess bleeding for up to 17 days can cause significant blood loss and may be a sign of something else. To be certain i would see an ob/gyn for further evaluation.
Dr. Daniel McGee
Dr. Daniel McGee
Thank
3 comments
Dr. Reid Blackwelder
While much less likely than Dr McGee's on target comes, some bleeding disorders can first present with this kind f issue, especially if the bleeding continues? Von Willebrand's disease and ther inherited disorders may only first show up with abnormal bleeding. I agree with seeing a primary care physician to discuss
Dr. Sahba Ferdowsi
Great answers! Wishing you'all the best
Marianne DiNapoli
Obstetrics & Gynecology
3 doctors agree

In brief: Get second opinion.

On average, menstruation lasts 4-7 days.
Though girls who have just started menstruating can have irregular cycles, it is not normal for periods to last 17 days. You might consider getting a second opinion to be sure nothing is wrong.

In brief: Get second opinion.

On average, menstruation lasts 4-7 days.
Though girls who have just started menstruating can have irregular cycles, it is not normal for periods to last 17 days. You might consider getting a second opinion to be sure nothing is wrong.
Marianne DiNapoli
Marianne DiNapoli
Answer assisted by Marianne Di Napoli, Medical Student
Thank
Dr. Troy Reyna
Surgery - Pediatric
1 doctor agrees

In brief: Worry

Periods should last several days and taper. Periods that last too long or are too heavy may indicate a bleeding condition.
Von willibrand's disease is one of these problems. Get a second opinion and get a blood count.

In brief: Worry

Periods should last several days and taper. Periods that last too long or are too heavy may indicate a bleeding condition.
Von willibrand's disease is one of these problems. Get a second opinion and get a blood count.
Dr. Troy Reyna
Dr. Troy Reyna
Thank
Get help from a real doctor now
Dr. Adam Levy
Board Certified, Obstetrics & Gynecology
33 years in practice
1M people helped
Continue
108,000 doctors available
Read more answers from doctors