There is a wide range of menstrual cycle lengths that women experience. The average month length is 28 days; however, it may be 31 days and 27 the next. That’s common.

The term “irregular menstrual cycle” refers to a cycle that does not fall within the accepted range. As a result, a menstrual cycle that is either less than 21 days or more than 35 days is considered irregular.

Causes of Irregular Periods 

Several factors might interfere with ovulation and your ability to carry a baby to term. 

  • Polycystic ovary syndrome (PCOS) 

The body of a woman with polycystic ovary syndrome produces too many androgens. Androgens are sometimes considered to be male sex hormones.

An excess of androgens might impede a woman’s ability to grow healthy eggs and be released via her fallopian tubes. 

Regarding ovulation problems, PCOS, which affects up to 21% of women, is the most frequent reason. Lifestyle variables, such as being overweight and inactive, may exacerbate the effects of genetic predisposition to PCOS.

Also Read : Best age to get pregnant with PCOS 

  • Low AMH 

Women are more likely to have infertility if their AMH levels are low. This may or may not be the reason, but it may point to a declining ovarian reserve. When fewer eggs are allowed to mature in the ovary, it might not be easy to conceive. 

Changes in egg quality may occur for similar reasons as the AMH declines. Pregnancy abnormalities are one possible consequence of these gene alterations.

Also Read : Main Reasons for Low AMH

A low amount of AMH has been linked to miscarriages, particularly among women. If you have tried different reproductive treatments without success, a low AMH level may be the blame.

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    Treatment of Irregular Periods

    If your periods are irregular but aren’t causing any other symptoms, there’s usually no need to seek medical attention for them unless they’re causing you distress. 

    Your doctor may suggest hormonal birth control if you have PCOS. To treat hypothyroidism or an underactive thyroid, thyroid hormones may be required. In addition, the following might be beneficial: 

    Also Read : Does pcos affect pregnancy?

    • Modifying the birth control 

    After three months of hormonal contraception, your doctor may suggest trying a different method if your periods are irregular. Using Nexplanon, Depo-Provera, or an IUD might cause irregular periods in some women. 

    • Lifestyle modifications 

    Too much activity might disrupt a woman’s cycle in some cases. You may need to tone down the frequency and intensity of your exercises. If stress is the issue, it could help to speak to a counsellor about stress management. 

    Rapid changes may influence periods in body weight. Gaining weight might interfere with your body’s ability to produce eggs.

    Therefore, losing weight may improve your fertility. However, losing weight may cause your periods to become irregular or even non-existent. 

    • Hormone therapy (HT) 

    Unbalance of specific hormones is a common cause of irregular menstrual cycles. Doctors often prescribe oral contraceptives containing the hormones oestrogen and progesterone to treat menstrual irregularities.  

    In addition, progestin, a hormone drug, may assist women who don’t have periods to start having them. Trying to conceive while experiencing menstrual irregularities may prompt your doctor to recommend other hormone therapies. 

    • Surgery 

    Scarring or structural issues in the uterus or fallopian tubes might sometimes cause menstrual irregularities.

    If you and your doctor are sure you want children, surgery to fix any physical flaws or congenital abnormalities may be recommended. Also, this procedure may remedy the effects of extensive scarring in the genital area.


    Infrequent ovulation is the primary cause of irregular menstruation for many women.

    Although irregular menstruation and ovulation might make it more challenging to conceive, your doctor can assist by addressing the underlying cause of your symptoms and keeping a close eye on your pregnancy. 

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    Dr. Jay Mehta Fertility and IVF Specialist In Mumbai

    Dr. Jay Mehta

    Fertility and IVF Specialist


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    Dr. Jay Mehta is the Scientific Director of Shree IVF Clinic. He is a well-known Fertility and IVF Specialist and also among few doctors in the country who specializes in Embryology and Andrology.

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