* Thyroid Problems
Although Thyroid disorders affecting the track of periods is very rare, at times it can also stand as a reason behind irregularity in periods. The thyroid gland produces hormones that maintain a healthy metabolism rate. When it fails to do so, the metabolism rate witnesses abnormality and so does the track of periods.
* Polycystic Ovary Syndrome :
PCOS (Polycystic Ovary Syndrome) is nothing but the occurrence of small to big cysts filled with fluids in the ovaries. Women who suffer from PCOS can have irregular periods or no periods at all. Wonder why does that happen? PCOS stops the release of the egg.
* High testosterone :
Testosterone is a male hormone. It is that hormone which defines a man. But it exists in women, however in very minimal amount. When the testosterone hormone is overproduced in a female’s body, that can cause irregular periods.