What hormones are tested during the menstrual period?
Endocrine testing during the menstrual period usually includes progesterone, testosterone, prolactin, and similar hormones.
1. Progesterone
Progesterone levels are normally relatively stable. If serum progesterone levels during the luteal phase are below normal, it may indicate inadequate luteal function or anovulatory dysfunctional uterine bleeding. If progesterone levels are low during pregnancy, it could suggest conditions such as ectopic pregnancy or threatened miscarriage.
2. Testosterone
Elevated testosterone levels may indicate underlying diseases such as polycystic ovary syndrome (PCOS), ovarian tumors, intersex disorders, hirsutism in women, or hyperprolactinemia.
3. Prolactin
Elevated prolactin levels may be associated with conditions such as premature ovarian failure, precocious puberty, or prolactinoma. Low levels may indicate hypopituitarism.
In addition, other hormones such as follicle-stimulating hormone (FSH), luteinizing hormone (LH), and estradiol can also be tested. Testing is generally recommended on days 2–4 of the menstrual cycle.