This check has been designed to provide a comprehensive assessment of female hormones.
This test includes (expand individual tests for details):
Thyroxine (T4) is one of two major hormones produced by the thyroid gland (the other is called triiodothyronine (T3)). This test can tell whether the thyroid is performing properly. Thyroid hormones help regulate your metabolism (how the body functions).
Testosterone is a male sex hormone produced in the testicles of men. It is produced in much smaller amounts, in the ovaries of women. It is responsible for bone and muscle strength, as well as mood, energy and sexual function.
Follicle Stimulating Hormone is produced in the pituitary gland and is important for women in the production of eggs by the ovaries and for men in the production of sperm.
Luteinising Hormone (LH)
Luteinising Hormone (LH) is produced by the pituitary gland and is important for male and female fertility. In women it governs the menstrual cycle, peaking before ovulation. In men it stimulates the production of testosterone.
Oestradiol (E2) is produced in women mainly in the ovary. It is responsible for the female reproductive system as well as the growth of breast tissue and bone thickness. Normal levels of oestradiol provide for proper ovulation, conception, and pregnancy, in addition to promoting healthy bone structure and regulating cholesterol levels in females. In men, the testes, adrenal glands and fat tissue are the principal source of oestrogens. Oestradiol can be raised in men due to excess fat (which produces oestradiol) or in relation to testosterone levels which have declined with age. Raised oestradiol in men can cause the growth of breast tissue, the loss of libido and infertility.
Prolactin hormone is produced in the pituitary glad. Its primary purpose is to trigger milk production after childbirth. In pregnant and breastfeeding women prolactin levels can be very high. High levels in a woman who is not pregnant or breastfeeding can signal fertility problems as well as irregular periods. Raised levels in men can cause reduced sex drive, lack of energy, erectile disfunction and fertility problems.
Sex Hormone Binding Globulin
Sex hormones, like testosterone and oestrogen are bound to sex hormone binding globulin (SHBG.) When they are bound they are unavailable to your cells. High SHBG levels means there is less unbound hormones available to the cells. Low SHBG levels means you may have an excess of available hormones.
Free androgen index (FAI) is a calculation used to determine the amount of male hormones (androgens) which are unbound in the bloodstream. Low levels of FAI in men indicate reduced levels of testosterone available to the cells which can lead to symptoms such as: loss of libido, difficulty gaining muscle mass, and erectile disfunction. In women high levels of FAI could signify polycystic ovary syndrome.
Thyroid Stimulating Hormone (TSH) is produced in the pituitary gland. It tells the thyroid gland to produce thyroid hormones (T3 & T4.) High levels of TSH indicate an underactive thyroid while low levels indicate an overactive thyroid.