The thyroid hormones interact with the reproductive ones, oestrogen and progesterone, to preserve the normal ovary activity and the egg maturation process. Therefore, when there are thyroid problems, the female fertility may be affected.
If the thyroid gland releases an excessive quantity (hyperthyroid) or insufficient quantity (hypothyroid) of hormones it may cause:
– Ovulation alterations;
– Irregular periods;
– Infertility or problems in getting pregnant;
– Problems to successfully reach a full-term pregnancy.
When the thyroid gland doesn’t work well all our endocrinal system might become unbalanced. FSH and LH, the hormones that control the ovulatory cycle, may get affected provoking an anovulation. When this happens no egg is released and, consequently, the fertilization is not possible and there will be no pregnancy. For that reason, one of the fundamental medical tests regarding the female fertility is the hormonal profile, which includes the thyroid hormones.
Many times it is possible to recover the ovulation and therefore, to get pregnant naturally by restoring the hormonal values with some medication. However, if this is not stabilised with the hormonal medication it is advisable to turn to a fertility treatment.
After getting pregnant it is important to go to a specialist regularly in order to keep the thyroid gland and the hormonal levels under control.