You may have heard the term U = U, or undetectable equals untransmittable. This means people whose HIV viral load (the amount of HIV in the blood stream) is stably suppressed, cannot sexually transmit the virus. HIV treatment can reduce the viral load in the bodily fluids that transmit HIV to undetectable levels. To become and remain undetectable, people living with HIV should take their HIV treatment as prescribed. In addition to taking HIV medications, regular medical visits are important to monitor viral load and keep you as healthy as possible.