system
On and off vibration at the top of the penis feeling as if there is some pee sitting right there.
human
I have a vibration in the tip of my penis. The vibration feels like a cell phone is in my pocket but the vibration is on the very tip.  It goes away for about 30 seconds and then comes back for 10  seconds. It follows this pattern all day and night.  It feels like I have some pee sitting right at the top of the penis.
gpt
Hi,I can understand your concern for on and off vibration at the top of the penis feeling.It is a common phenomenon to find such kind of abnormal sensation due to nerve twitching. The superficial nerves supplying the penile skin are overstimulated and gives a feeling of vibration at that site. This is in particularly related to Vitamin B complex and cyanocobalamin. I suggest you to check for your serum B12 level so that exact cause can be find out.Start vitamin B complex in daily schedule and eat a lot green leafy vegetables with sprout and fruits. Reduce your tensions and anxiety as many times these symptoms are related to anxiety also.Take care.