What causes passing of gas from penis?

Brief Answer: Suspected diagnosis: Enterovessicle fistula Detailed Answer: Hello sir and welcome. Thank you for writing to us. I have gone through your query sir, and although rare gas can pass through the penis, but this occurs in a condition called an enterovessicle fistula, which is a pathway formed between the bowel and the bladder due to previous abnormalities of the bowel. I would request you to visit your doctor for an elaborate evaluation sir, as this pathway (fistula) can very easily result in various other complications. I hope you find my response both helpful and informative. Please feel free to write back to me for any further clarifications, I would be more than happy to help you. Best wishes.