There are a multitude of companies that offer immediate testosterone tests, both finger-prick and formal blood samples. So if it is so easy to diagnose testosterone deficiency, why not just get a blood test and approach a doctor with the result?
The first problem is that not all tests are accurate, and there are huge variations in results depending on external factors, time of day of test, finger prick vs venous sample etc.
Other problems with diagnosing testosterone deficiency are the variations in determining what is a normal result (as discussed above). Perhaps the biggest problem when looking at testosterone deficiency, however, is the fact that many of the symptoms of testosterone deficiency overlap with other medical conditions such as thyroid disease, anaemia, or even diabetes.
Therefore, we would advise before getting a blood test to look for low testosterone, speak to a specialist doctor first to work out which tests are the right ones for you.