Where are these located? If I understand you correctly, then I also have similar “cuts” just behind my head, and above my circumcision scar. They aren’t cuts per se, since they are not raw and bleeding. I’ve often wondered what they could be, and from all my hypothesising, I’ve come to the conclusion that my skin (and perhaps yours) is subsabtially thinner and more sensitive behind my glans, thus resulting in easier tearing and manipulation during stretching in particluar.
I don’t think it’s much cause for concern, since it is not painful and the “cuts” (I would prefer to call them indentations) are not open.
Would like to hear from you on this one.