Low "T" like Crohns, is becoming more and more understood as studies on it have increased. It used to be thought of as an old man's disease, but such is not the case anymore. It is now believed that testosterone in men starts to decline after they reach their mid twenties. The jury is still out as to whether or not Crohn's has anything to do with it, but more and more are beginning to believe that there is a connection.
Testosterone replacement comes in different forms. Patches,gels,and injections are the most common. I've tried them all. Injections work the best for me. I give myself a 1 ml. dose of testosterone cypionate every 2 weeks.
It's packaged in a 10 ml. bottle which lasts 20 weeks. My co-pay is $50.00 US which is what 1 mos. supply of the gel cost me. My skin didn't absorb the patch and gel, hence the need for the injections. As far as I'm concerned, it's money well spent.
Hope this helps.