How common is night sweats in HIV infection?

HIV affects the immune system, and changes in immune activity or other infections can cause sweating during sleep. Some people develop a short flu-like illness after infection, while others have no noticeable early symptoms. Later symptoms may include persistent fever, swollen glands, tiredness or recurrent infections. Night sweats also have many non-HIV causes, so they cannot establish HIV infection. Testing is the only dependable way to check after a possible exposure.

If you may have had a recent exposure, seek confidential medical advice promptly about the right test and whether urgent preventive treatment could be relevant. Do not wait for symptoms to decide. Record the exposure date, any medicines and the timing of night sweats. Until you have advice, use barriers during sex and do not share needles. If HIV is diagnosed, effective treatment and ongoing monitoring can protect health and reduce transmission.

Seek urgent help for severe breathlessness, confusion, fainting, dehydration or a rapidly worsening illness. Arrange prompt testing for night sweats with fever, swollen glands, unexplained weight change, diarrhoea or repeated infections, particularly after a possible exposure. Tell the clinician if you are pregnant or take medicines that affect immunity.

Ask which HIV test suits the timing of your exposure, when a result is reliable, and whether other infection tests are needed. You can also ask about confidentiality, prevention options and what symptoms should trigger urgent review.