Donut Effect on just one side

Guys a little strange thing is happening to me, I jelq and do manual stretches, and I get donut because I am uncut, but it’s just in one side of my head, it’s very strange, any light??

Donut effect it’s a sign that I am doing wrong?

You grip too hard while jelqing.

Funny you should post about this, as I was just preparing to make a thread about this too. I’ve noticed that after jelqing, the right underside of my penis had a more prominent donut effect. I was thinking that I was gripping unevenly as I alternated between left and right hands.

Meiya777, how hard should the grip be then? Judging by the demo videos of wet jelqing, it looks like the grip should be fairly tight to keep blood from flowing out.