👉 Gallstones are hard, white solid masses that form in the gallbladder (the organ responsible for storing bile). They can be caused by a variety of factors such as diet changes, stress, or certain medications. The main symptoms of gallstones include pain in the upper right quadrant of the abdomen, nausea, vomiting, and sometimes abdominal pain. Gallstones can also cause other symptoms like jaundice (yellowing of the skin) and chills. Treatment for gallstones typically involves surgery