How does hyperthyroidism affect the menstrual cycle?

People with hyperthyroidism are more likely to experience abnormally low bleeding during periods. This is known as hypomenorrhea.
Hyperthyroidism can also cause a person to have fewer periods. Photo: Pexels

(Caitlyn Geng/ Medical News Today) — A variety of hormones control the menstrual cycle. This network of hormones impacts thyroid function, although the relationship between menstruation, reproductive function, and the thyroid is complex.

People with hyperthyroidism, an overactive thyroid, and hypothyroidism, an underactive thyroid, may be at higher risk of disturbances and irregularities in their menstrual cycles.

This article looks at how hyperthyroidism can affect the menstrual cycle, other symptoms, and more.

Hyperthyroidism is when the thyroid gland, a small, butterfly-shaped gland at the front of the neck, produces more thyroid hormones than the body needs.

Thyroid hormones are essential to most bodily functions, systems, and organs, including the menstrual cycle and reproductive system. (…)