Thyroid Disease and Your Period

How do hypothyroidism and hyperthyroidism affect your period?

The butterfly-shaped thyroid gland found at the base of the neck controls multiple systems in your body through the hormones it produces. These hormones (T3 and T4) are carried around by the blood to all parts of the body and controls your metabolism which can affect how fast the heart beats and the rate at which calories are burned in the body. When the thyroid gland produces little to no thyroid hormones, a condition known as hypothyroidism occurs and everything S-L-O-W-S-D-O-W-N, including functions like metabolism, digestion and your reproductive health. On the other hand, when the thyroid gland produces more hormones than the body needs, hyperthyroidism occurs which speeds up body functions and that too can affect your period.

How do hypothyroidism and hyperthyroidism affect your period?

Studies have shown that women are more prone to thyroid disease, experts believe this may be caused by inflammation that can interfere with a woman’s hormonal output and when that happens everything can go haywire! Hypothyroidism can cause multiple systems in the body to behave badly, that includes your reproductive system and menstrual flow. Thyroid hormones play an important role in women’s reproduction, and if they thyroid is not functioning properly it can lead to heavier cramping, acute PMS, menstrual irregularities and even infertility.

Side effects of hypothyroidism can lead to slow menstrual flow and sometimes your period can stop altogether. But, if you have hyperthyroidism, your period can be very heavy and sometimes you can get spotting in between period. And, some patients have indicated that the time in between their period is much shorter, so instead of having a 28 day cycle it can be even less. Too much or too little thyroid hormone can make the menstrual flow to either be heavy, light or irregular. It can also lead to the total stoppage of menstrual flow for months or even longer.

Other effects include

■      Early menopause

■      Problems getting pregnant

■      Likelihood of miscarriage

■      It can also lead to stillbirth


Treatment of hypothyroidism, as well as a healthy lifestyle, can help with thyroid problems associated with menstruation. Maintaining a sugar-free diet, gluten-free, probiotics, and Selenium foods can help address thyroid problems. Also, eating foods that do not promote inflammation can help reverse or manage thyroid disease.