Hormones

Irregular periods and PCOS

Periods are often irregular in the first years. Learn what is common, when to see a doctor, and what PCOS is, so you know when to ask for a check rather than worry.

5 minutes·For 14 to 16, 17 to 19

Irregular is common at first

In the first two to three years after periods start, cycles are often irregular. The body is still learning to release an egg regularly.

In teenagers, a cycle (from the first day of one period to the first day of the next) often ranges from about 21 to 45 days. Some months may be skipped.

Stress, exams, illness, travel, big changes in activity or eating can also make a period come late or early.

When to see a doctor

See a doctor if periods stop for 3 months or more after they had been coming, or if they come more often than every 21 days.

Also see a doctor for bleeding that soaks a pad every one to two hours, periods lasting more than 7 days, bleeding between periods, or pain that stops you from going to school.

Still having very irregular cycles more than three years after your first period is also worth checking.

What is PCOS?

Polycystic ovary syndrome, or PCOS, is a common hormone condition that can affect the ovaries and how often an egg is released.

Possible signs include very irregular or missing periods that continue for years, extra hair on the face, chest or tummy, and acne that is hard to treat. Not everyone has all signs.

Only a doctor can diagnose PCOS, after examining you and considering other causes. Many teens with irregular periods do not have PCOS.

If you are diagnosed

PCOS is manageable. A doctor will explain options that suit you, which may include lifestyle support and sometimes treatment.

Regular activity, balanced meals and good sleep help hormones and overall health for everyone, with or without PCOS.

Be careful of online programmes and products that promise to cure PCOS. Follow your doctor's advice.

Key points

Irregular periods are common in the first two to three years.
Stress, illness and exams can affect cycles.
See a doctor for no period for 3 months, very heavy or painful periods, or bleeding between periods.
PCOS is common and manageable; only a doctor can diagnose it.

Myth or fact?

Myth

Irregular periods always mean PCOS.

Fact

Irregular periods are very common in the first years and have many causes. Only a doctor can tell if it is PCOS.

Myth

Missing periods means your body is cleaner.

Fact

Periods are not about cleanliness. Missing periods for months can be a sign of a health issue worth checking.

Myth

People with PCOS can never have children.

Fact

Many people with PCOS go on to have children if they choose, sometimes with medical support.

When to get help

See a doctor if your periods stop for 3 months or more, or come more often than every 21 days.
See a doctor for very heavy bleeding, periods over 7 days, bleeding between periods or severe pain.
If you feel faint, dizzy or very breathless during a heavy period, get medical help quickly.
If worries about your periods or body are affecting your mood, talk to someone or call Tele-MANAS on 14416.

Get help now

Check what you know

1.Are irregular periods common in the first years after periods start?

2.Who can diagnose PCOS?

3.Which is a reason to see a doctor about periods?

Based on guidance from ACOG, WHO, Indian Academy of Pediatrics, NHS. Awaiting review by Puberty Lab's clinical advisory board. General education, not medical advice for any one person.