An HIV test is used to detect the presence of the Human Immunodeficiency Virus (HIV), the virus that weakens the immune system by attacking CD4 cells. Early detection is important because HIV may not show symptoms for years, but the virus can still damage the immune system during this time. Doctors recommend this test if you have symptoms like unexplained fever, weight loss, fatigue, swollen lymph nodes, or if there has been any possible exposure to infected blood or bodily fluids.

For the HIV test, a small blood sample is collected from a vein, and no fasting or special preparation is required. Modern HIV tests are highly accurate and can detect the virus early. Early diagnosis helps in starting treatment on time, reducing complications, and preventing transmission.