Garter Snake can't quite defecate

[Kimota42]

I recently purchased a baby garter snake. When I checked on him this morning it was clearly having trouble fully defecating. It's been eating rosey reds so far and it's cage temps are in the mid-80s.

I currently having him soaking in warm water. I'm hoping that will help.

Any advice would be really appreciated.

I have other snakes but this is my first garter. I've never quite seen anything like this.

I've attempted to attach a pic but I'm on mobile - so I'm not sure it worked.