Should I go to the doctors about a problem I think I have?

I've had a spot in a sensitive part of my body come and go for quite a while. It's not dangerous as far as I can tell, just gets sore and flares up from time to time. I'm not one for really wanting to go and hassle the GP for one reason or another, but it isn't going and I think I may have bite the bullet to get it checked out.