Does HIV infection cause unintentional weight loss?

HIV may affect weight through ongoing immune activity, reduced appetite, mouth or swallowing problems, digestive symptoms, or infections that make eating and absorbing nutrients harder. Weight may change gradually, and it can occur alongside fever, night sweats, diarrhoea, tiredness, or swollen glands. These features can also arise from conditions unrelated to HIV, including thyroid disease, digestive disorders, mood changes, or other infections.

The symptom does not establish HIV infection. A clinician considers the pattern of weight change, appetite, medicines, general health, and any possible exposure before choosing tests.

Arrange a medical assessment if weight is falling without an intentional diet or exercise change. If HIV exposure is possible, request confidential testing and tell the clinician when it happened. Keep a simple record of appetite, symptoms, meals, and weight changes. Choose nourishing foods and fluids that you can tolerate, and seek help if nausea, diarrhoea, mouth pain, or low mood makes eating difficult. Do not start supplements or HIV medicines without professional advice.

Seek prompt care for ongoing weight loss with persistent fever, drenching night sweats, prolonged diarrhoea, repeated infections, severe tiredness, or trouble swallowing. Urgent assessment is needed for dehydration, confusion, inability to keep fluids down, or severe weakness. A recent possible HIV exposure also warrants prompt advice because some preventive treatment is time-sensitive.

Ask which tests could explain the weight loss, whether HIV testing is appropriate for the timing of an exposure, and when results should be repeated. Ask how to maintain nutrition safely, which symptoms need faster review, and whether any current medicine could be affecting appetite or digestion.