Mushy? Looks like it might be root rot...

inside the roots are white???

also do u know what type of adenium this is?? never seen leaves this small in any pics for identification.

can it have root rot and still have such green leaves?

Well, I guess that sounds like it could be possible. Since root rot starts at the roots and works it’s way up the plant. I think people in general think that the plant is ok until it starts to show signs that something is amiss then unpot and find rot.

I have a few but don’t know a whole lot about them other than to not over water, watch for cold temps... The fact that the roots are white is a good sign. They should be PURE WHITE. Not even slightly tan. And no rings showing darker coloration or tan. Did your slice into one of the roots? If so, can we see?

How long have you had it? Where are you located? Where is it kept? Type of lighting? Growing medium? When did you water it last?

This may help others to help you.