Women / Basic female hormone study

LH, FSH, prolactin (PRL), progesterone (PRG), 17-b-estradiol and cortisol.

There is no need to go with an empty stomach. No appointment is necessary either, blood draws are done from 8:00h – 10:30h from Monday to Friday.

Before undergoing this test, you must temporarily stop taking any hormone-based medication, and it is also essential that the test be performed between days 3 and 5 of the menstrual cycle.

The results are delivered within 48-72 hours.

This analysis is used to check for hormonal alterations in women that may determine certain pathologies such as polycystic ovary (PCOS), infertility, etc.

PCOS consists of a hormonal and metabolic alteration that is determined by an ovulation disorder caused by an excess of male hormones in the woman. It is produced when the luteinizing hormone (LH) or insulin are very high in the body, leading to an excess production of testosterone by the ovaries. Consequently, it generates irregularity in the menstrual cycle, lack of ovulation, hirsutism (increased body hair), tendency to obesity, skin pigmentation disorders, presence of multiple cysts in the ovaries and infertility. This pathology is an alteration that predisposes to develop a picture of insulin resistance.

A study of the following hormones is carried out:

  • Luteinizing Hormone (LH). Also produced in the pituitary gland, and which is responsible for the Graaf follicle releasing the mature egg.
  • Follicle Stimulating Hormone (FSH). Hormone produced in the pituitary gland (hypophysis) and whose function is to stimulate the Graaf follicle to produce a mature egg. 
  • Prolactin (PRL). Hormone produced in the pituitary gland and whose function is to stimulate the production of milk after birth and the manufacture of progesterone by the ovary.
  • Progesterone (PRG). It is a sexual hormone released by the ovaries and later by the placenta. During the menstrual cycle, its function is to condition the endometrium to facilitate the implantation of the embryo in it, and during pregnancy it helps to ensure that it passes safely
  • 17-b-estradiol. Oestradiol is produced in the ovaries, along with progesterone. But it is not produced in the same way at every stage of life. Before puberty the levels of the hormone are very low. It begins to increase in puberty giving rise to the sexual characteristics, the increase of the chest, increase of the size of the uterus, of the ovaries, the appearance of the rule… During the fertile age the estradiol is higher, but it undergoes variations according to the menstrual cycle. During the menopause it decreases again.
  • Cortisol. Cortisol is a hormone produced in the adrenal gland that serves to increase blood sugar. When this hormone rises it is known as hypercortisolism and produces negative effects by increasing fat or increasing blood pressure levels.