Symptoms

Symptoms are the body's signals that something has changed — they point clinicians toward an underlying diagnosis but are rarely a diagnosis on their own. The pages below describe each symptom, common causes, when it warrants medical evaluation, and links to research literature. Many of these symptoms appear together in conditions affecting the liver, gut, blood, and immune system.

Symptom Index

Fatigue — persistent tiredness not relieved by rest; common in anemia, infection, thyroid disease, and chronic illness.
Jaundice — yellowing of the skin and eyes from elevated bilirubin; signals liver, biliary, or hemolytic disease.
Dark Urine — tea- or cola-colored urine from conjugated bilirubin, blood, or myoglobin in the urine.
Pale Stool — clay-colored or acholic stool indicating absent bile flow into the intestine.
Abdominal Pain or Discomfort — visceral, parietal, or referred pain from the GI tract, liver, pancreas, or other organs.
Nausea and Vomiting — protective reflexes triggered by GI, central, vestibular, or metabolic stimuli.
Loss of Appetite — anorexia driven by inflammation, infection, medication, or psychological factors.
Joint Pain — arthralgia from mechanical, inflammatory, infectious, or metabolic causes.