Hormonal analysis This is one of the main tests performed to find out whether there are any fertility problems in a woman or not. Through a blood test we check the main hormones, such as: FSH, LH, prolactin, estradiol, progesterone and anti-Müllerian hormone (AMH). This test allows us to know if there are hormonal problems causing an alteration in the menstrual cycle and find out about the woman’s ovarian reserve.   Ultrasound In a female fertility study a transvaginal ultrasound is performed, to observe the uterus and ovaries, verifying that there is no uterine malformation or any other anatomical complications, that may lead to fertility problems, and also an antral follicle count (RFA) will be performed during the first days of the cycle. The results of the antral follicle count and the AMH value will tell us about the status of the ovarian reserve.   Karyotype Although this is not one of the basic tests, it is advisable, in order to evaluate the female´s chromosomal structure and discard any possible chromosomal alterations that may be the origin of sterility or infertility. It is carried out from a blood extraction (the same as for a regular blood analysis), for which it is not necessary to be fasting. It will take between 15 to 20 days for the results to be ready.