For the following causes of sexual dysfunction, select the most likely clinical feature.Can be caused by high prolactin level.
High prolactin level suppresses luteinizing hormone-releasing hormone (LH-RH), and can result in low plasma gonadotropin and testosterone levels. It may not be obvious on physical examination. Therapy with a dopamine agonist may lower prolactin levels and reverse impotence.
loss of sexual desire
failure of erection with absent nocturnal penile tumescence (NPT)
absence of emission
absence of orgasm with normal libido and erectile function
Endocrinology