Hepatitis A Symptoms You Should Be Aware Of

Hepatitis A virus (HAV) infection often presents with no clear clinical symptoms, especially in the early stages. Many individuals experience asymptomatic or subclinical infections, meaning they may not even realize they have been infected. However, when symptoms do appear, they typically reflect an acute onset of the illness.

Common Symptoms of Hepatitis A

The most frequently observed symptoms include chills, fever, abdominal pain, diarrhea, fatigue, nausea, vomiting, and an enlarged liver. These signs can vary in intensity and may resemble other common illnesses, making early diagnosis challenging.

Fever and Duration of Illness

Studies show that around 83% of patients with acute hepatitis A develop a fever ranging between 38°C and 39°C. For most individuals, the fever lasts less than three days. However, about 15% of those affected may experience a prolonged fever lasting more than five days.

Elevated Liver Enzymes

Impact on Liver Function

Approximately 55% of patients show signs of abnormal liver function, particularly elevated levels of liver enzymes such as alanine aminotransferase (ALT) and aspartate aminotransferase (AST), which can range from 800 to 2000 U/L. This sharp increase is a key indicator of liver inflammation caused by the virus.

Jaundice and Misdiagnosis

In some cases, the disease begins with jaundice — a yellowing of the skin and eyes — which may be the first noticeable sign. Early symptoms can closely resemble those of a common cold or flu, leading to misdiagnosis and delayed treatment. It's crucial to consider hepatitis A as a potential cause when flu-like symptoms are accompanied by digestive issues or unexplained fatigue.