Hadid, 18, posted on Instagram a picture of herself sitting on the hospital bed, reported Ace Showbiz.
In the picture, Bella was in a patient gown sitting in a hospital bed while her mother Yolanda Foster and a doctor were standing by her side.
The three were all smiles in the picture.
A caption for the picture read, "Why are we all smiling." Bella seemingly hinted that a problem with her tonsil was the cause of her being hospitalised.
"See you later tonsils!," so he wrote at the end of the caption.