Worried about my 2YO after finding a lump.

I have just got back from the doctors with my just turned 2 year old Son, as a couple of weeks ago I found a lump on his willy.

After reading many parent forums, so many Mothers said this was common in children and nothing to worry about.

However I just couldn’t leave it.

The doctor has now referred him to the hospital as he said he hasn’t come across this before. 😳

Is this something I should be worried about as I am massively! Or do you think this is just a precaution just to check it out.

Please, any comments welcome just to put me at ease a little. 😞