I had a huge ghost corn male many years ago that developed soft fatty lumps all over it's body just below the skin too, and these fatty deposits were from eating too much. I do not care at all about what some people may say about this either, snakes CAN GET FAT!
And also snakes that aren't females that need the extra body weight for egg production simply DO NOT need to be fed like this...period.
This same silly advice was given to a poster that had a small 20 inch Gray-Banded king, and was inapropriately told to cram as much food down it as it could possibly take in, to be precise, he/she was told two large adult mice would be okay...LOL!...HUHH???,...that is simply pure nonsense, a tiny delicate slender built snake like a 20 inch Gray-Band CANNOT deal with huge meals like this, and it would be just fine to do this if your main goal was to have the snake constantly regurgitate it's meals. ALL SNAKES DO NOT have the same metabolism, or needs, it is as simple as that. And someones "pet" male snake sure as hell doesn't need to be continually stuffed until the skin is stretched between every single scale either, this is ridiculous advice to be telling people.
Common sense goes a long way on this subject, and different snakes have different needs, it is NOT like adding oil to a car engine and needing to keep it filled all the way to the top line of the dip stick.
I've done some research on the fatty lumps in the past, and they usually tend to take a fairly long time to go down, but they usually do after a good while of watching the diet intake.
Don't go cramming as much food down your snake as it can manage to swallow at one sitting without giving serious sensible thought to if it "needs" this or not, and what are the goals of what you are intending to do with the snake, for example, are you going to need to pump up a female some for egg laying?, or is it just a pet?, or a male that doesn't really need so much?. Also what time of year is it?, are you going to need to give it plenty of food PRIOR to brumation in a very cold climate, so it won't come out on the thin side in the spring. All these things are important to consider, and every snake is NOT a voracious Florida kingsnake eating machine either. all these things must be considered as to what is really best for a given situation, and again, some common sense can work wonders here too. I've always done real well with using some simple common sense in most things I do..LOL!
hope this helps some!
~Doug
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"a snake in the grass is a GOOD thing" 