Most women will experience missed periods or irregular periods in their lifetime.
Menstrual irregularities include changes in timing, frequency and volume of your period.
“So why are my periods abnormal?”
This article answers your questions about the causes of irregular periods.
7 Reasons for your menstrual irregularities
1. Menarche & Menopause
There are specific times in a woman’s life when she is prone to irregular periods, namely at the start of menstruation (menarche)
and at the end (menopause)
. Cycle length, duration of bleeding and amount of bleeding can all vary significantly during these 2 periods, and these irregularities can last for several months.
Pregnancy is one of the commonest causes of a missed period. Unsure? Check by using a home kit, or getting a blood test. Pregnancy-related complications such as miscarriage and ectopic pregnancy can cause a late period, with abnormal bleeding. Breastfeeding after pregnancy also delays the return of your periods.
Fluctuations in body weight can interfere with your cycles. Irregular periods, or a missed period or two can occur if you’ve gained or lost a significant amount of body weight.
For the ultra fit amongst us, participation in endurance sports or intensive exercise results in reduction in body fat, to levels which may not support regular hormonal function.
For the average female, the effects of exercise may be more evident in times when you have newly initiated exercise, or increased the intensity of your previous regimen. You may experience missed periods or abnormal periods for a few months, but this phenomenon is usually transient.
Experiencing a tough time at work or at home? That might potentially be wrecking havoc on your hormones, causing your periods to be irregular, late, or lighter than usual.
6. Birth control
The Pill, or other forms of birth control, usually have the advantageous effect of regulating or reducing periods. However, different types of birth control can influence your periods differently. Depending on the type of birth control you’re using, you may have missed periods, irregular periods, lighter periods, or no periods at all.
If this is interfering with your lifestyle, speak to your doctor about swapping to an alternative form of birth control.
Read more about contraception here
7. Hormonal imbalance
Period cycles are controlled by several hormones in the female body. Polycystic Ovarian Syndrome (PCOS) is a hormonal condition which results in irregular periods, lighter-than usual, or missed periods. Associated symptoms include male pattern balding, acne, weight gain, abnormal and excessive hair growth and infertility. This condition is common, affecting up to 15% of reproductive-age women.
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Having Women’s Health concerns? Please visit our Partner Clinics or contact them at their Women’s Clinic in Singapore. They are open on weekends too.
1. Dr Tan and Partners @Duo Galleria
Main Doctor: Dr Michelle Chia
7 Fraser Street
B3-18, DUO Galleria (Bugis MRT)
Telephone: +65 6976 5023
Monday, Wednesday & Thursday
9.00am – 5.00pm
Tuesday & Friday
9.00am – 8.00pm
9.00 am – 1.00 pm
Sunday and Public Holidays – Closed
2. Dr Tan and Partners @Robertson
Main Doctor: Dr Grace Huang
(Anonymous HIV Testing is available daily too)
11 Unity Street,
#02-06/07, Robertson Walk
Telephone: +65 6238 7810
Monday – Friday
8.00am – 9.00pm
9.00 am – 9.00 pm
9.00 am – 2.00 pm
Public Holidays – Closed