How low is too low testosterone?

Depends: Most testosterone replacement is suggested at 300-350 due to an overall increase in mortality in men when its this low. Some physicians will still may not treat it and others will. Age managment physicians believe in optimization of hormone so aim for higher levels. Speak with your physician about your symptoms to help them understand what you need.

You should decide: Just as what's too much for one person may not be enough for someone else, what's low testosterone for someone may be fine for someone else. Dr. Patel is absolutely correct re an association btwn low t & mortality. There are at least 6 or more observational studies showing this. But we do not yet have any randomized controlled trials demonstrating that giving someone t decreases mortality.

Cause?: It would be appropriate to have tests to determine the cause and then the appropriate treatment may be testosterone.