The human liver is positioned on the right side of the body in most people, although there are certain congenital conditions where the liver is located on the left. Whether the liver is on the right or left, it is always located inside the abdominal cavity.
The liver is located in the upper portion of the abdomen, underneath the diaphragm, and over the stomach, small intestine and one of the kidneys. People with situs inversus or heterotaxy have the liver located on the left. Situs inversus is considered a relatively harmless condition, as all of the organs are reversed in a perfect mirror image of a typical human body. Heterotaxy reverses the position of some organs, but not others, and can lead to jaundice due to connections between organs not forming correctly.