Before I start, let me say I hope this question isn't marked as seeking personal medical advice because I'm not asking for medical advice, and even though I talk about my personal experiences, I just want to know if circumcision can lead to early childhood masturbation.
I was circumcised when I was about 3 or 4 and I can't remember at which age I started masturbating so my guess is that it started right after that (very early). For as long as I can remember, I've always had a sensetive penis and I think that led to early masturbation. I could always feel slight stimulation whenever I lied down towards the bed.
Also I wonder if this has anything to do with being "cut tight".