What should I do for this? Her stomache and vent look fine. No swelling, she's just thinner and light weight then the others. Hasent been eating well, poor thing. I am giving her polyvisol twice a day and helping her get water just to make sure she's drinking enough since I cant notice if she is or not.Hard to say from the pics, but it could be a little oedema , from a previous injury. Have you felt around the vent and tummy area? Ill navel or mushy chick disease will leave their little abdomen swollen .