At what age did you learn to retract the foreskin?

It was around 5 or 6 years old.

I don't remember exactly who I learned it from first. It was either the pediatrician or my grandmother.

@mediguy183 I too had a part of the inner foreskin which was still fused to the glans corona aged about 11 or 12, about 2mm right in the dorsal side, so when I looked down at my erect penis, foreskin back, it was there, right in the middle of the corona.

When prior to masturbating sitting on the toilet just back from school, I pulled my foreskin back hard, then with my thumb exerted some pressure against it, and I forced it to snap away, leaving that bare part of the corona very sore and sensitive.

Strangely enough, the pain on the corona which lasted a day or so, gave me a virtual constant erection.

My glans was now fully free of the fused inner foreskin which had been forced away over time by the girl along from me.

This little fused part seemed very stubborn, but at least my glans was free, and looked like the flared red mushroom it became.

I was taught by my pediatrician to pull it back for cleaning. The youngest I can remember him doing it was at a check-up at 5 years old before the school started in the fall but I can recall it wasn't a surprise or something new to me at that age and that I was used to him looking there and telling me that I had to keep it clean.

Must have been very young as it seems like I was always able to do it without any teaching so my guess it 3-4yo

I was around 11 or 12 when I first pulled my foreskin back. I’d noticed that there was something under my foreskin before then but never dared or felt inclined to retract it. I was quite nervous about pulling it back as I wasn’t sure how to push it back into place afterwards. Needless to say, the discovery that my foreskin retracted added a new dimension to my masturbation sessions.