Finding a spot or spots on your penis can often induce blind panic.

However, in this exclusive guide, Dr Jessen from Channel 4's Embarrassing Illnesses explains the benefits of getting diagnosis and treatment quickly, and talks through some of the likely conditions (from the serious to the harmless) that might have you awake at night.

A spot is sometimes just a spot, but if you’re worried – then it’s nothing your GP won’t have seen a thousand times before!

Video courtesy of Embarrassing Bodies.

Due for review February 2013