When This Girl’s Belly Wouldn’t Stop Growing, Doctors Realized She Had To Get To Hospital Fast

So what is a cyst? According to the Medical News Today website, “Cysts are closed capsule or sac-like structures, typically filled with liquid, semisolid, or gaseous material, very much like a blister.” Also, cysts can form in the tissue of any body part. In Smith’s case, the cyst had formed on her ovary.