FSH and Inhibin B are two hormones involved in sperm production and its regulation. In addition, the values of these two hormones are inversely related, i.e., the higher the amount of FSH, the lower the amount of inhibin B.
Therefore, when FSH and inhibin B values are within the normal range, sperm production will be correct. On the other hand, if the FH hormone concentration is above the normal range, the amount of inhibin in the blood will be less, so there will be an alteration of spermatogenesis. In these cases, the diagnosis would be oligozoospermia.
It can also happen that both FSH and inhibin concentrations are too low. Therefore, no sperm will be produced and it would be a secretory oligozoospermia.
Read the full article on: Diagnosing oligozoospermia via semen analysis and hormone tests ( 47).
By Álvaro Martínez Moro B.Sc., M.Sc. (embryologist), Luis Quintero Espinel M.D. (gynecologist), Marta Barranquero Gómez B.Sc., M.Sc. (embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Michelle Lorraine Embleton B.Sc. Ph.D. (biochemist).
Last Update: 10/24/2022
