But the knife was razor sharp and probably clean, right? It wasn't a jagged metal chain that had been previously cutting who knows what which was probably covered in bug and animal crap, piss and spit and all the pathogens and microorganisms there in.
That's not really a very good comparison. If you think it is, show us a video of you slicing open your leg like he did with a chain saw, then begin a treatment program completely on your own. And be sure to show us when you have to cut off your own leg from the infection, too. And I want to see you cauterizing the profusely bleeding stump with a fireplace poker after you cut it off, too. But other than all that, you'll be just fine on your own, I'm sure, Bear Grylls.
Yea, I didn't think so.
No need to have an attitude and then post some silly scenario. I was relating my own story where a serious cut didnt need a hospital visit. You have an immune system, access to topical antibiotic ointments and bandages. These three items should be good for most wounds, even semi-serious ones.
The two things hospitals can prescribe over and above what I can do for myself at home are internally acting antibiotics usually taken orally and stitches. If you have a wound that is bleeding profusely and to the point where blood loss is a concern, or perhaps a wound on the face where a neatly stitched wound is desired, then you need a hospital visit. I'll admit that you may run the greater risk of infection by not visiting a hospital but most of the time you won't if you take proper care of your injury.
But IMO, the pic the OP showed didn't warrant a hospital visit. To me it seemed like he scraped off some skin. I would have put some neosporin on some gauze, bandaged it up and then changed it often. Yes some skin is missing, but its no different than getting road rash from a bike accident on asphalt and grating off a few layers of skin. OP said that the wound is only into the fat layer and not into the muscle; I've received a few of these injuries myself over the years and have never seen a hospital for them.
My own example I referenced before was a with cleaver and not a sharp kitchen knife. The cleaver is a blunt force tool and I literally split my finger, not sliced it. The flesh tore open; there was nothing neat and orderly about this injury. And to boot, there were brown fibers from the coconut shell in my wound which had to be plucked out, with tweezers.
In any event, everybody's bodies heal differently as well as everyone has different tolerances for pain and ability/confidence to treat their own wounds. I was helping a friend butcher some hogs and an extremely sharp carving knife (might add that it was covered in pig's blood) slipped and opened up a DEEP wound on his leg. Duct tape holding a maxi pad (procured from wife's bathroom for its ultra blood absorbent capabilities)with neosporin was the wound dressing. IMO it needed stitches since the wound opened and closed every time he flexed his knee but it did heal just fine. Anyway, to each his own...