How can I tell if I have HIV?

How can I tell if I have HIV? ]
Because of the nonspecific symptoms associated with primary or acute HIV infection, symptoms are not a reliable way to diagnose HIV infection. Testing for HIV antibodies is the only way to know whether you have been infected; however, the HIV antibody test only works after the infected person's immune system develops antibodies to HIV. During the "window period" between the initial infection and the period in which antibodies are detectable (which can be from 2 weeks to 6 months, but is usually 3 months), standard HIV testing is ineffective.

It is not possible to reliably diagnose HIV infection or AIDS based on symptoms alone.

People living with HIV may feel and look completely well but their immune systems may nevertheless be damaged. It is important to remember that once someone is infected they can pass on HIV right away, even if they feel healthy.

The only way to know for sure whether a person is infected with HIV is for them to have an HIV test.
As time passes without effective treatment, HIV weakens an infected person's immune system, making them much more vulnerable to opportunistic infections. These infections are caused by germs that are around us all the time but which can normally be fought off by a healthy immune system. Once HIV has broken down the body's defences, such infections can take hold and produce any of a wide range of symptoms - some of them very severe. Certain cancers also become more common when the immune system is weakened.

Such symptoms are, however, not caused directly by HIV , and they can't by themselves be interpreted as definite signs of HIV infection or AIDS. A diagnosis of AIDS requires signs of severe immune deficiency, which cannot be explained by any factor except HIV . This generally requires an HIV test.

The only way to know for sure whether a person is infected with HIV is for them to have an HIV test.

How can I tell if someone else has HIV?

There is no way to know for sure if someone else has HIV. Many people with HIV look perfectly healthy. Other people who are sick with HIV may have symptoms that are identical to other common illnesses. You cannot tell by looking whether someone is HIV positive. The only way to know for sure is if someone tells you. It is important to consider how well you know someone and how much you trust them when talking about sex and HIV.