What are the symptoms of HIV infection?

After infection with HIV, symptom manifestation varies among individuals, and the disease course can be divided into different stages. In the early stage, known as the acute phase, patients may develop flu-like symptoms within 2–4 weeks after infection, such as fever, headache, sore throat, night sweats, nausea, vomiting, diarrhea, rash, joint pain, and swollen lymph nodes. These symptoms typically subside after 1–3 weeks, followed by an asymptomatic phase that can last for several years, during which the patient may experience no obvious symptoms. As the disease progresses to the AIDS stage, patients will develop a series of severe symptoms, including persistent fever, night sweats, diarrhea, weight loss exceeding 10%, generalized lymphadenopathy, neurological symptoms (such as memory loss, personality changes, headache, and seizures), respiratory symptoms (such as recurrent pneumonia), gastrointestinal symptoms (such as loss of appetite, nausea, and vomiting), and skin manifestations (such as herpes and ulcers). In addition, various opportunistic infections and tumors may develop, such as malignant lymphoma and Kaposi's sarcoma, leading to a poor prognosis. If you have concerns or experience any of these symptoms, seek timely medical attention and undergo professional testing and treatment.