The liver sits on the right side of your body, in the upper right portion of your abdominal cavity. It’s tucked beneath your ribs and diaphragm, resting on top of your stomach, right kidney, and intestines. Most of the liver’s mass is on the right, but a smaller lobe does extend across the midline toward the left side of your abdomen.
Exactly Where the Liver Sits
Your liver occupies what doctors call the right upper quadrant of your abdomen. The diaphragm (the muscle you use to breathe) forms a dome over the top of it, and your lower ribs wrap around it like a protective cage. Because the ribs cover most of the liver, you can’t normally feel it by pressing on your abdomen. During a physical exam, a doctor may ask you to take a deep breath so the diaphragm pushes the liver downward just enough for its lower edge to become detectable beneath the rib margin.
The liver is the largest solid organ in the body, weighing roughly 1.5 kilograms (about 3.3 pounds) in an average adult. It’s shaped like a wedge or a thick triangle, wider on the right and tapering as it crosses toward the left. That tapering left lobe is why some people are surprised to learn the liver isn’t entirely on one side. But the bulk of the organ, and the area where you’d feel any liver-related discomfort, is firmly on the right.
What Surrounds the Liver
The liver doesn’t sit in isolation. Its neighbors help explain why problems in the area can produce confusing symptoms. Directly beneath the liver, the gallbladder tucks into a small depression on the organ’s underside. The stomach presses against the liver’s left lobe. The right kidney sits just behind and below it, and loops of intestine rest underneath.
Because so many organs are packed into this region, pain in the upper right abdomen doesn’t automatically mean your liver is the source. Gallbladder issues, kidney stones, and even gas trapped in the intestine can all produce discomfort in roughly the same spot.
Where Liver Pain Actually Shows Up
The liver itself has very few pain-sensing nerves inside it. What you feel when the liver is inflamed or swollen is typically the stretching of the thin capsule that wraps around it. That discomfort usually registers as a dull ache or sense of fullness in the upper right abdomen, just below your ribs.
Liver-related pain doesn’t always stay in one place, though. Depending on the cause, it can radiate to the back, the neck, or the right shoulder. The right shoulder pattern catches many people off guard, but it happens because the diaphragm and liver share nerve pathways. When the liver or its capsule irritates the diaphragm, the brain sometimes interprets the signal as coming from the shoulder instead.
The Two Main Lobes
Anatomists divide the liver into two primary lobes: the right lobe and the left lobe. The right lobe is significantly larger, making up roughly five-sixths of the organ’s total mass. The left lobe is the thinner section that extends across the midline of your body toward the left. Two smaller lobes, the caudate and quadrate, sit on the liver’s back and underside but are much less prominent.
Despite the size difference, both lobes perform the same work. Every region of the liver filters blood, produces bile to help digest fats, processes nutrients absorbed from your intestines, stores energy, and breaks down toxins. The liver receives blood from two separate sources: oxygen-rich blood from the heart and nutrient-rich blood directly from the digestive tract. That dual blood supply is one reason the liver is so metabolically active and so large relative to other organs.
When the Liver Is on the Left
In rare cases, a person’s liver is on the left side. This happens in a condition called situs inversus, where the major organs in the chest and abdomen are mirror-reversed from their normal positions. The heart points to the right, the spleen moves to the right side, and the liver shifts to the left. Situs inversus affects about 1 in every 10,000 people. Most people with the condition live completely normal lives and may not even know about it until an imaging scan or surgery reveals the reversed anatomy. It doesn’t cause health problems on its own, but it’s important for doctors to be aware of it so they interpret scans correctly and plan any procedures accordingly.
How to Locate Your Liver From the Outside
Place your right hand flat against your right side, fingers pointing inward, with your fingertips just below your right nipple line. Your liver sits behind and below that hand, spanning from roughly the fifth rib down to the lower edge of your rib cage. If you slide your fingers along the bottom of your ribs on the right and press gently inward while taking a deep breath, you might feel the firm, smooth lower edge of the liver briefly slip past your fingertips. In a healthy person at a normal weight, this edge is often difficult to detect. An easily palpable liver edge can sometimes indicate that the organ is enlarged, which is something worth mentioning to a doctor.