6 Things That Can Make Your Period Irregular

Most women’s menstrual cycle last anywhere between 21 and 35 days—but one out of 10 have irregular period or have super heavy flow. That could signify a lot of things, from periods that comes once every few months to ridiculously light or heavy bleeding.

Here are some of the reasons why your period seems wonky and some helpful ways to try to keep it as regular as possible.


Too much stress can cause a condition called anovulation, when the body doesn’t release an egg every month like it is supposed to do. When you are too stressed out, your body produces too much cortisol, which can interfere with the production of sex hormones—the hormone responsible to ovulation. Depriving yourself of sleep can also affect your hormone regulation and cause irregularity on your cycle.

Thyroid Disease

If you notice that your period comes more frequent than the usual once a month and has become lighter, it could be a sign of hypothyroidism. On the other hand, heavier and less frequent period may mean you have hyperthyroidism. Thyroid problems are more common in women, and typically occur in your late 20s to 30s, so having irregular cycles during this age could be a sign of thyroid disease.


Sporadic and unpredictable periods can mean you have polycystic ovarian syndrome (PCOS). PCOS is a hormonal imbalance that causes women to miss their period, cause it to be extremely irregular or to not get their period at all. If you experience completely skipping a cycle, it might be a sign of PCOS. And since PCOS causes excessive production of testosterone, look out for other signs like noticeable appearance of hair above the lips, breakouts and difficulty in losing weight.

Drastic Weight Change

Drastic change in weight can affect the pituitary gland, and in turn create hormonal imbalance, messing up your body’s natural ability to ovulate. No need to worry, though, as this can be easily remedied by getting back to your healthy weight (granted that you don’t have underlying health problems that could be affecting your weight).

Extreme Exercises

Intense workout routines can cause a condition called athletic amenorrhea. According to researches, the stress and intense energy demands from the body can impact the hormones, causing the body to produce imbalance amounts of different hormones.

Some Medications

Blood thinners, like warfarin and heparin, can make the period heavier. Some antidepressants, antipsychotics and the drug methadone also cause irregular cycles. If you’re taking a new medication and you think it is messing with your period, raise this concern to your doctor.

If you currently experience irregularities with your period, it is best to talk to a gynecologist for accurate diagnosis and treatment plan.

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