 [ Symptoms ] how long does it take for testicles to be completely full of semen at that point it should be at maximum sensitivity  the goal of this question is to understand how to attain abstinence since i am a single divorced man i figure if i can understand the science of this question it will allow me to have a goal in mind for lack of a better term that will give me hope in knowing that my penis will be as sensitive as it can be at that moment of which the semen is completely full  at that point i think it will ease my mind and allow myself to just get used to being that sensitive all of the time thank you [ Disease ] cancer cells are exquisitely sensitive and in fact stimulated to grow by testosterone so before a man is put on testosterone therapy it is essential that we know he does not have cancer both by an exam and a blood test and if a man is put on testosterone he needs to be monitored to make sure that a cancer does not develop by monitoring the exam and the psa blood test there are a lot of men out there who are saying ooh my testosterone is a little low i need a little oomph and there is a downside to that absolutely well the problem is that it is easy to treat and men if they are depressed if they are feeling a little fatigued if their sex drive is down any reason they go to the doctor and it is easy to say aha your testosterone is low give them testosterone replacements where they draw a single level and say this is the problem but that is not the way to do it but the testosterone level fluctuates dramatically throughout the day and so if you do not draw it at the right time you might get an artificially high or low level so it should be drawn ideally at late to mid morning and then you have to understand what it is you are treating are you treating a symptom or are you treating a blood test result so we want to treat the man monitor the levels it is important that the levels be appropriate and it is important that we are sure we are treating the right thing just because his testosterone might be low there might be other more serious or dangerous causes of what is ailing him hormone imbalances as far as like diabetes thyroid disorders liver disorders it could be side effects from medication it may be side effects from social activities such as marijuana tobacco or alcohol all of these things can impact on a man as well as if he is stressed or fatigued that does not necessarily mean there is something hormonally wrong maybe he is not getting enough sleep 010801 maybe he is stressed because of work and he just needs to learn stress reduction techniques than try to look for something a shot or a pill that will make things better today there are a lot of problems treated with testosterone for problems that really are not low testosterone and we need to be careful because too much testosterone for the wrong reasons can stimulate prostate cancer