Re: One testicle = low test?
Nope. I, at least, have not heard of a correlation between loss of a testicle and lowered testosterone levels. In fact, guys who have had a testicle removed due to testicular cancer still enjoy active sex lives and are still fertile.
Symptoms of low testosterone levels would iclude a decreased libido and loss of energy (generally). Even if you do not have these symptoms, if you have any doubts about your total testosterone level, the best thing is simply to ask your doctor to run a TT lab test.