swelling in pubic region

Almost seven years ago, walking down some stairs, I missed a step and felt a strain in my groin. A week or so later, while showering, I noticed a swelling or lump in the left side of my groin, above the crease which divides thigh from abdomen, the pubic area. Naturally, noticing a lump or swelling provoked concern. But that concern quickly lessened when I saw that this swelling seemed to

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Just to go to a real, live doctor and find out for sure what it is.  Then you will know for sure, and see what your options may be.  Online sleuthing only goes so far.