I Have Had A Sudden Onset Of Severe Pain In

I have had a sudden onset of severe pain in my right groin area. I had been sitting for less than an hour and when I went to get up and walk , the pain occurred . I now need a cane to help me walk. Even with the cane, the pain persists.
I am male age 85.
I am now sitting with a heating pad on my right groin area. Can you suggest a diagnosis? What new info do you need?