Less Libido, what's the cause?

To test whether your libido problems have a physical cause, this test involves the following blood tests:

• Free testosterone, testosterone total, SHBG
• Prolactin (pituitary gland)
• PSA (prostate)
• LH (hyposphysis, in men LH is needed for the production of testosterone)
• HbA1c (diabetes)
• Gamma GT (liver)

Cause of impotence

The most common causes are:

• certain medications (e.g. some anti-hypertension and anti-depressant products, performance enhancers or hair loss products)
• drug use
• smoking
• liver disease (usually due to alcohol abuse)
• vascular problems (e.g. due to arteriosclerosis, diabetes)
• neurological problems (as a result of a back injury or multiple sclerosis, for example)
• urological problems (as a result of e.g. prostate surgery or radiotherapy for prostate cancer)
• psychological problems (depression, fatigue, stress)