Why the fuck is my penis getting smaller? I'm 52 years old, but still very sexually active. My old lady and I still fuck every day, on average, sometimes, but rarely, twice a day. My cock still gets rock hard, but lately, It seems it's not quite as big as it used to be, so I measured it last night, and its just slightly over 6 inches long. I know for a fact it was 7 3/4 inches long in my early 20's, because my girlfriend at the time measured it. I've never measured the diameter, but I know it's considerably thinner now than it used to be. Also, my nuts are also getting smaller, I've never measured them, but they are about half the size they were when I was younger. Is this normal to get smaller? Does anyone else have this problem? My wife hasn't said anything about it, but I'm sure she can feel the size difference. I used to feel my cock slamming into her cervix when I'd bury it full stroke, but now I don't quite hit her deep enough. Pisses me off some, I hope to fuck I don't get any smaller.