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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Irregular And Light Periods In An Adolescent?

Hi, I am an 18 year old woman and my period only lasted one day the past two months, and there was very little blood. It was on time, and I am sexually active but the last time was two months ago. I was just wondering if you think I could be pregnant. I have had irregular periods in the past where is it didn t come for 3-4 months at a time and I am just worried so if you could let me know that would be appreciated
Mon, 18 Apr 2016
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General & Family Physician,  's  Response
HI,
Thanks for asking.I understand your concern.
After starting the menses ( menarche).. the periods tend to be irregular in beginning( for about a year)because the hormonal cycle of menstruation is yet to be established.. & there is hormonal imbalance.
But once regular, it can not get irregular without a cause.
* You are 18 now, when was your 1st menses? if it was few months before.. please don't worry.. but exclude pregnancy & be protected with contraception in future.
* but if you are worried about delay after attainning regular periods & you are sexually active it is better to -
-Exclude pregnancy by home pregnancy test after 8 days delay in menses.
- Get Usg pelvis done to exclude PCOD as a cause of the irregularity & get it treated if it's the cause.
Thanks.
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What Causes Irregular And Light Periods In An Adolescent?

HI, Thanks for asking.I understand your concern. After starting the menses ( menarche).. the periods tend to be irregular in beginning( for about a year)because the hormonal cycle of menstruation is yet to be established.. & there is hormonal imbalance. But once regular, it can not get irregular without a cause. * You are 18 now, when was your 1st menses? if it was few months before.. please don t worry.. but exclude pregnancy & be protected with contraception in future. * but if you are worried about delay after attainning regular periods & you are sexually active it is better to - -Exclude pregnancy by home pregnancy test after 8 days delay in menses. - Get Usg pelvis done to exclude PCOD as a cause of the irregularity & get it treated if it s the cause. Thanks.