I was running upstairs as i was thirsty to geta drink. I did not notice that at the time i had an erection. Due to my height my erect penix collided quite painfully with the sink. Would this of done any harm? It as quite painful!

Most likely not, but not out of the question. Ice it (ouch!) And it you get any really big swelling in one spot/ you might expect some overall swelling - go to the emergency room. Bruising would be normal. Pain for about 3 days would be normal. Difficulty in peeing or painful peeing might mean an injury - see a doctor if that happens- not an emergency room. You could find your self in pain having bowel movement- that would indicate a muscle injury and not to worry about.

If on Monday you are still in pain - give your doctor a call just to review the situation.

Ok. Cool thanks. Just seems a little bruised. No big swelling so far.

On little cuts that are painful to touch on your hurtin' little friend , try applying with a Q-tip, a little Anbesol tooth number if you happen to have some in the med cabinet...it might make it a lot easier to take a shower cause that water can sting a sensitive bruise there and bring tears to your eyes...trust me. It might smart for a second when you apply it, but it quickly goes away. Anbesol, although it has some odor, helps heal it faster too and will help it return to it's normal self quicker. An aspirin or two for any persistant pain helps too!
Gregorio