I had to figure out the medical term to describe the location, but my perineum quite suddenly swelled, and became painful and tender to touch. I am a 23 year old male and I m driving or sitting for the majority of the time while working. I started my shift fine but within 6 hours i could feel pain and general discomfort. I have absolutely no pain or discomfort while urinating or during bowel movements, or any visible blood in either. I did not do anything overly strenuous prior to noticing. I would have to assume for it to come on this quickly it is not any type of growth I m feeling and not swelling but more likely some kind of infection?