Case study : A 27‐year‐old man was found to have azoospermi | Biochemistry

Case study :
A 27‐year‐old man
was found to have azoospermia. He gynaecomastia and small testes. He also complained of fatigue and low libido.

Laboratory results :
●Prolactin 300 <500mU/L
●LH 36. (1.0–9.0U/L)
●FSH 21. (1.0–10.0U/L )
●Testosterone 5 (10–30nmol/L )


What do these results suggest as regards the cause of the patient’s infertility?