Quote:
Evaluation and Treatment of Male Sexual Dysfunction - American Association of Clinical Endocrinologists and The American College of Endocrinology - "increased prolactin levels may also cause erectile problems, even in the presence of a normal testosterone level."
Quote:
Erectile Dysfunction / Impotence - Prostate Health Guide - U. of Maryland Medicine - "Hormonal abnormalities such as increased prolactin (a hormone produced by the anterior pituitary gland), steroid abuse by body-builders, too much or too little thyroid hormone, and hormones administered for prostate cancer may cause impotence. Rarely is low testosterone responsible for impotence"