Does over reactive thyroid affect your menstrual cycle?

An overreactive thyroid, also known as hyperthyroidism, can affect the menstrual cycle in several ways. Here's how it may impact menstruation:

1. Irregular Periods: Hyperthyroidism can cause irregular periods, making it difficult to predict the timing of menstruation. This is because the thyroid hormones influence the production and release of other hormones involved in the menstrual cycle.

2. Heavy Bleeding: Some women with hyperthyroidism experience heavier menstrual bleeding due to hormonal imbalances. The excessive thyroid hormones can thicken the uterine lining, leading to heavier blood flow during menstruation.

3. Shorter Cycles: Hyperthyroidism can shorten the menstrual cycle, meaning the time between periods may be shorter than usual. This is because the thyroid hormones accelerate the maturation and release of eggs from the ovaries.

4. Missed Periods: In severe cases of hyperthyroidism, some women may experience missed or absent menstrual periods. This is because the hormonal disruptions caused by the overactive thyroid can interfere with the normal functioning of the ovaries and the menstrual cycle.

5. Ovulatory Dysfunction: Hyperthyroidism can disrupt ovulation, which is the process of releasing an egg from the ovary. This can affect fertility and lead to difficulties in getting pregnant.

6. Changes in PMS Symptoms: Some women may experience changes in premenstrual syndrome (PMS) symptoms when they have hyperthyroidism. For instance, they may have more intense mood swings, fatigue, or other PMS-related symptoms.

It's important to note that not all women with hyperthyroidism will experience these menstrual changes. Some may have subtle changes, while others may not have any noticeable effects on their menstrual cycle.

If you have an overreactive thyroid and are experiencing changes in your menstrual cycle, it's essential to consult a healthcare professional for proper evaluation and management. They can assess your thyroid function, rule out other potential causes of menstrual irregularities, and provide appropriate treatment to address the underlying thyroid condition and its impact on your menstrual cycle.