What is the cause for thigh and groin pain that are inetermittent and what kind of Doctor do I see should I request an MRI

Why do you need an MRI for intermittent thigh and groin pain? I would just go and see a normal doctor, it could just be sore muscles, overstretched muscles,spasms,siatica any number of things etc.

Obviously I'm no doctor or even qualified, and don't know your situation, but if its bothering you,then you need to see your own doctor and tell them your symptons the best you can. It sometimes helps to write it down first,as to put them in the picture.