Since the foreskin is permanently retracted and cannot move forward to cover the glans, this needs an in-person examination by a urologist/ surgeon . It could be paraphimosis, a tight/scarred foreskin , or another local condition; this cannot be reliably distinguished from a photo alone .
Next Steps
Do not forcefully pull or manipulate the foreskin. If it is currently stuck behind the glans, even without severe pain, arrange a urology assessment promptly. If swelling, increasing pain, blue/purple/black discoloration, or difficulty passing urine develops, go to an emergency department immediately, as paraphimosis can compromise blood flow.