Is it possible on some days to see that a person has a yellow tent or am I seeing things?

Ascites

I know I have posted this before but when my husband lays down his stomach goes flat to a certain degree.  I asked him the other nigh to suck in his stomach while standing and he did and it also went flat to a certain degree.  However he has gained a good bit of weight over the last 5 months and its only in his stomach can someone tell me what they a