Recent research has suggested three late onset diseases in some adults may have their roots in Testosterone deficiency. Those diseases are Parkinsons ¹⁸⁴ Diabetes Mellitus¹⁷⁷ and Rheumatoid Arthritis,¹⁷⁸, which are prevalent amongst aging people. Clearly, this research needs following to a conclusion, one way or another.

What is fact is that there are a significant minority in both Diabetes Mellitus and Rheumatoid Arthritis patients who suffer from Testosterone deficiency. Osteoporosis has, amongst its secondary causes, Hypogonadism. But these are only three of a wide ranging group of conditions where this condition is common and remains untreated.

Common amongst all conditions listed here is a recommendation for Testosterone replacement therapy in qualifying patients, because beneficial effects have been seen and reduced cost of care have been identified in some.

Obesity²³¹⁵⁴ Parkinson's Disease,¹⁸⁴ Multiple Sclerosis,* Alzheimer's Disease¹⁷⁵, Hemachromatosis,¹⁸²AIDS,⁵¹Diabetes ⁹²,Rheumatoid Arthritis,¹⁷⁸, Epilepsy,¹² Sickle Cell Anaemia, Thallasaemia Major, Cancer,⁹⁵ Osteoporosis, Leprosy, Myeloid Leukemia, Myotonic Dystrophy, Acromegaly,¹¹²Erectile Dysfunction,⁸⁶Spinal Cord Injuries,^{22 180}Turners Syndrome,¹⁷¹ Klinefelters Syndrome,^{40 131 152 169} Kallman's Syndrome, Kidney Disease,¹⁰⁰¹⁸³ Burns,¹⁷⁹ Inflammatory Bowel Disease, ⁶⁷Wolfram's Syndrome, Down's Syndrome, Prader-Willi Syndrome.¹²⁸ Dermatophytosis²⁰⁰

As more evidence becomes available, we shall provide information pertinent to diseases where untreated Hypogonadism affects the well-being of patients with other health issues.

* Testosterone replacement is being evaluated in MS patients, but is not yet recommended.