What is jaundice, and what causes it in the body?
Jaundice is a yellow discoloration of the skin, mucous membranes, and the whites of the eyes caused by elevated levels of bilirubin in the blood—a yellow pigment produced by the breakdown of hemoglobin. It is a clinical sign, not a disease in itself: it points to an underlying cause that must be identified through medical evaluation. Arnaud, Ph.D. in Pharmacy, emphasizes that any case of jaundice in adults warrants urgent medical attention.
- Prehepatic jaundice: overproduction of bilirubin—hemolysis (excessive destruction of red blood cells)—elevated free bilirubin—causes: hemolytic anemia, malaria, transfusion incompatibility
- Hepatic (intrahepatic) jaundice: dysfunction of the liver itself—inability to conjugate or excrete bilirubin—causes: viral or toxic hepatitis, cirrhosis, acute liver failure
- Post-hepatic (obstructive) jaundice: obstruction of the bile ducts → reflux of bile into the blood — causes: gallstones, pancreatic or bile duct cancer, sclerosing cholangitis — diagnostic emergency
- Neonatal jaundice: common in newborns (70% of full-term infants) — immature liver unable to process excess bilirubin — generally benign and transient — phototherapy if bilirubin exceeds thresholds based on gestational age — routine pediatric monitoring
- Normal bilirubin levels: < 17 µmol/L (< 12 mg/L) — clinically visible jaundice begins at 50 µmol/L
Associated symptoms and signs of emergency
- Classic triad of obstructive jaundice: jaundice + pale stools (putty-colored) + dark urine (tea or dark beer) — sign of complete biliary obstruction
- Intense pruritus: deposition of bile salts in the skin — often the most debilitating symptom of cholestatic jaundice
- Signs of acute hepatitis: severe asthenia, fever, right upper quadrant pain, nausea, anorexia—often precede viral jaundice
- Warning signs = seek urgent care or call 911: jaundice + encephalopathy (confusion, asterixis) → acute liver failure — jaundice + fever + chills + biliary pain → cholangitis (infectious emergency) — jaundice + rapid weight loss → rule out cancer
- Progressive, painless jaundice in adults over 50: always consider pancreatic cancer—urgent abdominal CT or MRI
Diagnostic workup and hepatoprotective agents
- Initial laboratory workup: total bilirubin + direct/indirect (to determine the type) — AST/ALT (hepatic cytolysis) — GGT/PAL (cholestasis) — PT/INR (liver function) — CBC + reticulocytes (hemolysis)
- Imaging: abdominal ultrasound as first-line imaging (biliary tract dilation, stones, mass) — MRI/biliary MRI or CT scan if uncertain — endoscopic retrograde cholangiopancreatography (ERCP) to relieve a stone-related obstruction
- Milk thistle (silymarin): the gold standard hepatoprotective agent — protects hepatocytes from oxidative stress — used as adjunctive therapy in cases of toxic and alcoholic hepatitis — does not replace medical treatment
- Turmeric (curcumin): anti-inflammatory for the liver + mild cholagogue — provides functional support for the liver — used as a complementary treatment for functional liver disorders — see our page on liver disorders
- Substances to Avoid in Cases of Confirmed Jaundice: any hepatotoxic medication (high-dose acetaminophen, NSAIDs, certain antibiotics) — report all treatments to your doctor — see our line of detox supplements
Prevention, diet, and management depending on the cause
- Hepatitis B vaccination: recommended in France (3-dose schedule) — prevents the leading cause of chronic viral jaundice — see our hepatitis page
- Reducing alcohol consumption: the leading cause of cirrhosis and liver failure in France—any alcohol-related jaundice requires immediate and complete abstinence
- Liver-protective diet: fiber, cruciferous vegetables (broccoli, cabbage), antioxidants (berries, green tea), omega-3s — reduce saturated fats, refined sugars, and ultra-processed foods
- Obstructive jaundice due to gallstones: endoscopic (ERCP) or surgical (cholecystectomy) management — see our gallstones page
- Jaundice associated with advanced liver failure: specialized care—evaluation for liver transplantation if end-stage
