Pain in male perineum for 2 days worse when walking. does a lot of lifting at work. no pain when sitting. what could cause this?

Possibilities: Are muscle or ligament strain or a groin (inguinal) hernia. Needs a physical exam with a doctor to tell what he may have.

Are you asking this-: For a male person? It can be an ischial bursitis, if its off on one side (ie, not in the center). Is there any hx of a fall (like doing the splits)? It could be some inflammation from an infection there. Without an examination, its difficult to see what's happening? If its getting worse, then he should see his pcp.

Need diagnosis: See gastroenterologyist or urologist and see if have an abscess if so then need it drained.