Ageing and testosterone
Testosterone levels decline with age – what is normal?
In some men, testosterone levels will drop below what is healthy throughout the normal course of ageing. A decrease in total testosterone levels to below 12 nmol/L when signs and symptoms TD are present denotes the clinical syndrome of TD.2
In men with TD, testosterone levels are abnormally low which affects their overall health and causes symptoms of varying severity. Check clinical guidelines on when to treat TD.
Symptomatic men with a total testosterone level of 12 nmol/L or above do not usually require testosterone therapy.1 However, when total testosterone levels are borderline or low to normal, particularly in obese or ageing men, sex hormone binding globulin (SHBG) levels should be assessed. When men have elevated SHBG levels, free testosterone levels should also be assessed to determine if testosterone therapy is required.2