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Oligomenorrhoea

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Introduction
Some women find that their menstrual cycle isn't always regular. Their periods may be early or late, and may vary in how long they last or how heavy they are each time.
Causes of irregular periods
The pattern of a woman's menstrual cycle can be disturbed after changing contraception method, or because of an imbalance of the hormones oestrogen and progesterone.
Treating irregular periods
Treatment for irregular periods depends on the cause. Irregular periods are common during puberty or nearing menopause and treatment is usually not necessary at these times.
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See what your doctor sees, find out what is happening with your Periods, Irregular treatment and what the next steps might be.