What are the symtoms of low testosterone. and how are you tested?

Blood test: Common symptoms include fatigue, loss of libido, erectile problems, hair loss, even cholesterol problems. This can be checked with a simple blood test.

Many; blood test: Symptoms include a decreased sex drive, erectile dysfunction, fatigue, loss of muscle mass, loss of body hair and just a sense of not being well. It has many causes. A morning blood test for testosterone can tell you if your testosterone is low. If it is, a cause should be looked for, although sometimes a "fixable" cause cannot be found.