What Causes Liver Pain?
Apr 15, 2022
Source: Cainiu Health
Dr. Jin Zhongkui
Introduction
Liver pain is most likely due to inflammatory hepatic pain, such as viral hepatitis (e.g., hepatitis B). During active hepatitis, the liver becomes inflamed and swollen, causing significant stretching of the hepatic capsule; this leads to sensations of distension and pain. Bacterial infections may also cause hepatic inflammation—for instance, bacterial hepatitis. Additionally, inflammation from appendicitis can extend to the liver, resulting in secondary bacterial hepatitis and thereby causing right upper quadrant abdominal pain.
The liver plays a vital role in the human body; thus, liver disease can severely impact overall health. So, what causes liver pain?
What Causes Liver Pain?
Liver pain is often due to inflammatory conditions—such as viral hepatitis (e.g., hepatitis B) or other forms of hepatitis. During active hepatitis, inflammation and swelling of the liver cause significant distension of the Glisson’s capsule (liver capsule), resulting in sensations of fullness and pain. Bacterial infections may also cause hepatitis—termed bacterial hepatitis. For instance, appendicitis-induced inflammation can extend to the liver, leading to secondary bacterial hepatitis and consequently causing right upper quadrant (RUQ) abdominal pain. Additionally, hepatic abscesses—whether located within the liver parenchyma or along its margins—may spread to involve the peritoneum or abdominal cavity, producing RUQ pain, referred pain (e.g., dental pain), rebound tenderness, and muscular rigidity.
Clinically, nonalcoholic fatty liver disease (NAFLD) is relatively common. Even in its early or moderate stages—and especially in severe cases—it can impair liver function, leading to hepatomegaly and peritoneal stretching, effectively causing generalized hepatic distension. Patients may experience RUQ discomfort or dull pain.
However, the most common malignant cause is hepatocellular carcinoma (HCC), which may invade the liver surface or adjacent structures—including the sternum, peritoneum, or neighboring organs—resulting in significant pain. If liver-area pain stems from a malignant hepatic tumor, both treatment response and prognosis are generally poor, indicating advanced-stage disease. We hope this information proves helpful!
