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Archive for October 7th, 2010

Do you have low T?

If you google “low testosterone” you’ll see lots of ads for testosterone replacement.  Some are from pharmaceutical companies that sell testosterone, others from obvious snake-oil salesmen.

Both types of ads list vague sets of symptoms, encourage you to believe that they are pathologic, and want to sell you something to make you better.  For example, the pharmaceutical company Solvay gives you a handy guide for speaking to your doctor, and a quiz to see if you have “low T”.  The quiz asks some questions that may be useful, but also asks very general questions about your sense of well being, and includes this gem:

I don’t feel sick, I just don’t feel like myself anymore. Could I have Low T?

The ad then gives this advice:

Because Low T signs and symptoms may not be clear and apparent, they may seem to be a normal part of aging or assumed to be caused by other health conditions. But talk to your doctor if you have symptoms of Low T. And ask to get tested. All it takes is a simple blood test that can be done during a routine checkup. If you do have Low T, your doctor may recommend treatments that can help bring testosterone up to normal levels and keep them there.

If you have diabetes, you should ask your doctor for a Low T test. The Endocrine Society recommends that all men with type 2 diabetes have their testosterone levels checked. Patients who have been diagnosed with diabetes have an increased chance of also having Low T.

Let’s step back for a moment.  What is being claimed is that low testosterone levels in males is a common cause of certain symptoms, and that testosterone replacement therapy can alleviate these symptoms.  To evaluate this claim from the perspective of science-based medicine, we need to ask specific questions. (more…)

Posted in: Science and Medicine

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