5 causes of irregular menstrual periods

Many women have irregular menstruation periods occasionally while others have them throughout their lives.  An irregular period could be a missed period, a shorter than usual cycle, or an oddly heavy flow.

Menstruation is the shedding of the lining of the uterus accompanied by bleeding. It occurs in monthly cycles throughout a woman’s reproductive life, except during pregnancy.

Menstruation starts during puberty and stops permanently at menopause. On average a woman’s menstrual cycles normally ranges from about 25 to 36 days and bleeding lasts between 3 to 7 days.

Factors affecting your menstrual period

1. Hormonal imbalance

Your menstrual cycle is regulated by hormones. Luteinizing hormone and follicle-stimulating hormone are produced by the pituitary gland which promote ovulation and stimulate the ovaries to produce estrogen and progesterone.

Hormonal imbalance may occur when there is too much or too little of a hormone in the bloodstream.

2. Illness

Conditions like endometriosis, thyroid conditions, PCOS (polycystic ovary syndrome, fibroids, diabetes etc. can interfere with the hormones in your body.

These can all cause your period to arrive early or result to a heavier than usual flow.

3. Certain medications

If you take an emergency contraceptive like the ‘morning after’ pill, chances are that your periods will most likely come earlier or later than expected. This is because they contain hormones that disrupt the normal ovulation process.

Other medications like blood thinners (anticoagulants) or antibiotics can also cause you to have an early or delayed period including heavy bleeding.

4. Menopause

Perimenopause is the transition into menopause which typically begins once you clock 40 years.

If you are approaching menopause, you may notice that your periods becoming less predictable since your hormone levels fluctuate during this time, and you may not ovulate every month.

5. Stress

Mental stress can cause fluctuations in our hormones, severe stress can disrupt your hormone levels causing irregular periods. This could be as a result of anxiety or if you have recently been through a traumatic experience.


Are you or someone you know planning on travelling for medical treatment in India (or any other country overseas) for a chronic disease e.g. cancer, knee or hip replacement, liver or kidney transplant; wellness checkup or to improve your form, shape or appearance through cosmetic procedures or reconstructive surgery?

We can help you get there faster, easier and better prepared.

Contact us on (+254) 0711 104 458, e-mail  or click here  and we will call you back with more information.