What is a common indicator of paraphymosis?

A common indicator of paraphimosis is swollen glans penis. This condition occurs when the foreskin is retracted and cannot be returned to its normal position over the glans, leading to swelling and potential compromised blood flow. The swelling arises because the constriction of the foreskin around the glans can impede venous return, causing edema. This swelling is critical for recognizing paraphimosis, as it is one of the most visible and immediate signs of the condition.

While the other options may relate to different urological issues or complications, they are not characteristic indicators of paraphimosis specifically. Discharge from the penis may indicate an infection or other conditions, painful intercourse could suggest a variety of issues ranging from physical obstructions to inflammatory conditions, and difficulty urinating might point towards other urological problems, such as urinary tract obstruction or infection. Hence, swollen glans penis is the marker that specifically highlights paraphimosis.