Before you laugh at me, hear me out. Has this ever been discussed here before? Knee pain developed at least from exercise/lifting weights? I lift weights a couple times a week. Years ago, I messed up my left knee doing a lunge. I went and had all types of tests done and everything came back negative with no structural damage. I did PT and for the past few years it's been fine, nothing too bad. This week for those of you that know I relapsed this week after a 31 day streak. I went on a "P & O" relapse on Monday, Tuesday and Thursday (yesterday). 3 days this week, first time I have done that many times in a week in a while. Today, I went and worked out legs and using the normal weight that I always do, felt a sharp pain in my knee doing squats (not a heavy amount of weight). Obviously it's the same knee I hurt years ago but could this be a correlation to at least the excessive masturbation I did this week for the first time in a while? I thought it was crazy when the thought entered my mind on wondering if it could be masturbation since it has so many other negative side effects. I did a google search and came upon this where many others have discussed the same thing? Again, I think this might come about from excessive masturbation. If this is true...how would sex be different? Or if you had sex the same amount of times (a lot during the week), could knee pain also arise or does your body know the difference between masturbation and regular sex which wouldn't affect it? http://www.steadyhealth.com/topics/bad-knee-and-other-side-effects-from-masturbation?page=1 Again, I know I might be crazy but at least I'm not the only one that has brought this up? Apparently, your body loses calcium when you produce semen and it has to account for it which makes your bones weaker. But again, wouldn't too much sex do the same thing? There is even a supposed doctor on that link who agrees with this...it just seems too weird of a connection with myself after I had the same exact form, etc. This has happened once in the past and now I'm wondering if I went on a binge back then too... Or maybe I'm crazy and there is no correlation. Just found the coincidence very interesting.