Thank you for asking. It appears to be a problem of Phemosis. Normally, the foreskin should smoothly slide over the penis, but when the skin is tight, the sliding is difficult. Very often a forceful attempt it retract the skin can cause the skin to get stuck at the head and it may not easily return back to normal. If it remains stuck, there may be swelling of the foreskin as well.
Next Steps
Kindly consult with a sexologist for further management.
Health Tips
Dont worry. It is treatable.