HBsAg Test

HBsAg (Hepatitis B surface antigen) is a protein on the surface of the hepatitis B virus. Testing for HBsAg detects the presence of this antigen in the blood, indicating current infection with hepatitis B virus (HBV). Here’s some key information about HBsAg testing:

HBsAg Test: Key Information

What is HBsAg?

• Hepatitis B Virus: HBsAg is a protein present on the surface of the hepatitis B virus.
• Transmission: HBV is transmitted through contact with infectious blood or body fluids of an infected person. It can also be transmitted from mother to child during childbirth.

Why is the HBsAg Test Important?

• Early Detection: Helps diagnose acute or chronic hepatitis B infections.
• Screening: Used for screening individuals at higher risk of HBV infection, such as healthcare workers, people with multiple sexual partners, or individuals born in regions with high HBV prevalence.
• Prevention: Identifies individuals who may benefit from vaccination against hepatitis B.
• Monitoring: Monitors the effectiveness of treatment in individuals with chronic hepatitis B.

When Should You Get an HBsAg Test?

• Routine Screening: Often part of routine blood tests, especially for those at higher risk.
• Symptoms: If you experience symptoms of hepatitis B infection, such as jaundice (yellowing of the skin and eyes), fatigue, abdominal pain, or nausea.
• Exposure: After potential exposure to HBV, such as through unprotected sex or needle-sharing.