Greetings Courtney281.

You posted some pictures of your Mexican Black King Snake many, many moons ago and after you said you were going to be taking it to the vet to diagnose what the white "scarring" was, the post went dead without explanation or follow up.

I have been searching for information on exactly the same issue you had, and the snake I have with the same problem is ALSO a Mexican Black King Snake.

I got it about 6 months ago, Oct 2016 and it was beautiful, shiny black. No flaws....It would NOT eat for about 2 months, although I did not leave the juvenile/hopper mouse in with it for more than a couple of hours. I never saw any confrontation or attack by the mice I attempted to feed it during those months. I never left the mouse in overnight. It shed just before having it two months and then finally ate about a week after shedding. It still looked beautiful.....it has been very finicky in regards to eating, but has eaten live several times now. I had a mouse die one night and decided I would see if my Mexican Black would eat a dead mouse, and to my surprise....it saddled right up to the dead mouse and consumed it, like it was trained to do so. Shortly, after this, a week or so later the pre-shed, milky eyes and dull skin color appeared. Then it shed, but not a full shed. It shed was left in several pieces. This snake seems to like to bath in its water bowl daily. The environment is regulated with day and night lighting and heat at about 80 degrees (24" above the bottom). The cage is based with Eco Earth Coconut fiber expandable substrate. I go through a week of drying this substrate before I introduce it into my snakes environment, so that it is completely dry. I have several cork hides and a natural driftwood piece that I've had for years. After that last shed, I've noticed little white remnants of dry scales in several areas of my, once, flawlessly black, beautiful snake. Over the last couple of weeks it seems more area's are appearing and they look just like the ones in your photos. What was the diagnosis? Did you ever find out what it was? Were you able to correct it? Please advise?

Thanks,
Eric68