The Problem of Low Testosterone - Welcome to TODAY'S TMJ4 - The NBC Affiliate in Milwaukee, WI - News, Weather, Sports -

Between 10% and 20% of men between ages 40 and 70 have lower than normal testosterone production. Risk factors for hypogonadism include increasing age, obesity, pituitary gland disease, and diabetes. Signs and symptoms of low testosterone include decreased sexual desire or interest, problems with erection, fatigue, osteopenia or osteoporosis, and anemia. Recent studies suggest that testosterone deficiency may contribute to vascular disease, which is a known cause of sexual dysfunction. Diagnosis of testosterone deficiency is typically made by history, examination, and a testosterone blood test. 

In general, blood levels of less than 300ng/dL are considered abnormally low. Treatment of low testosterone is usually via topical gels, applied once daily after a shower. The gel preparation allows a daily dose of testosterone to absorb through the skin. The medicine reaches its peak in the bloodstream within 2 hours of application. Patients on testosterone supplements are monitored with periodic office checkups and blood tests.  Men with symptoms of low testosterone should discuss testing and treatment with their physician.