The article also discusses the clinical stages of the disease, including the prodromal (pre-icteric) phase and the icteric phase. Common manifestations include fever, fatigue, nausea, loss of appetite, jaundice, and changes in urine and stool colour. Furthermore, the article highlights the importance of laboratory investigations, particularly the detection of anti-HAV IgM antibodies and the measurement of liver enzymes, alanine aminotransferase (ALT) and aspartate aminotransferase (AST), to confirm the diagnosis and assess the disease. It also emphasizes that treatment is primarily supportive, involving adequate rest, appropriate nutrition, sufficient fluid intake, and avoidance of alcohol and medications that may adversely affect liver function. The article concludes by emphasizing the importance of prevention through Hepatitis A vaccination, proper personal hygiene, regular handwashing, and ensuring the safety of drinking water and food, thereby helping reduce disease transmission and protect community health. Al-Mustaqbal University – The First University in Iraq