Early Signs and Symptoms of HIV
Quick answer
About two-thirds of people get flu-like symptoms within 2 to 4 weeks after HIV infection, such as fever, sore throat, rash, night sweats, muscle aches and swollen glands. Some people have no symptoms at all, and every one of these symptoms can have other causes, so symptoms can't tell you whether you have HIV. The only way to know is to get tested. If you were exposed in the last 72 hours, ask about PEP right away.
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Matching some of these doesn't mean you have HIV, and matching none doesn't mean you don't. Many illnesses cause the same symptoms. Only an HIV test can tell you.
Worrying about HIV after a possible exposure is stressful, and it’s natural to search for every sign. The most important thing to know is that you can’t tell from symptoms. This page explains what early HIV can look like, why that isn’t enough, and what to do next.
What are the early signs of HIV?
The earliest stage of HIV is called acute infection. HIV.gov says that within 2 to 4 weeks after infection, about two-thirds of people have flu-like symptoms. This is the body’s natural response to the infection. The symptoms can include:
- fever
- chills
- rash
- night sweats
- muscle aches
- sore throat
- fatigue
- swollen lymph nodes
- mouth ulcers
The NHS describes a short flu-like illness around 2 to 6 weeks after infection, with a sore throat, high temperature, swollen glands, muscle aches, tiredness or a skin rash.
What are the early signs of HIV in women?
HIV.gov says that the symptoms of acute HIV infection are generally similar for men and women. So you don’t need a different list for women or for men. Use the same one and rely on testing.
Can I have HIV with no symptoms?
Yes. Some people have no symptoms at all in the early stage. After the early stage, the CDC describes a chronic stage in which people may not have any symptoms or get sick, but HIV is still active and can be passed on. The NHS says you may not have any other symptoms of HIV for years, which means many people with HIV do not know they have it.
Do night sweats, a rash or a sore throat mean HIV?
Not by themselves. HIV.gov says many symptoms of HIV can also be caused by other illnesses, and asks people not to assume they have HIV just because of these symptoms. The CDC says the same: having these symptoms alone doesn’t mean you have HIV.
The reverse is true too. Feeling fine doesn’t mean you are in the clear. That’s why the question to ask is not “do I have the symptoms?” but “was there a possible exposure, and have I been tested?”
How can I find out if I have HIV?
The only way to know is to get tested. HIV.gov says you can’t rely on signs and symptoms to tell whether you have HIV. You can order an HIV test online, and HIV self-tests are also available. The CDC says everyone between 13 and 64 should be tested at least once, and people with certain risk factors more often.
Most HIV tests look for antibodies, which can take a few weeks to appear. HIV.gov says other tests can detect infection sooner, so choose a test that can detect early infection if you think you were recently exposed. A negative test soon after an exposure may need to be repeated. Our window periods guide explains how different tests compare.
What if the exposure was in the last few days?
There is an emergency option. PEP (post-exposure prophylaxis) is HIV medicine that should be started within 72 hours after a possible exposure. If you are inside that window, don’t wait for symptoms and don’t wait for a test to be accurate. Go to an emergency room or urgent care clinic now, or see your health care provider right away. Our HIV PEP page explains where to go and what to expect.
What happens if I do have HIV?
HIV treatment helps people live long, healthy lives. HIV.gov says taking HIV medicine as prescribed can lower the amount of virus in the blood until it can’t be detected on a standard lab test, and people who keep an undetectable viral load will not pass HIV to their partners through sex. The CDC says to start treatment as soon as possible after diagnosis. A positive result is something you can act on, and support is available.
Get care today if
- You think you were exposed to HIV in the last 72 hours, even if you feel completely well (PEP must be started within 72 hours)
- You have a fever together with a stiff neck, severe headache or confusion
- You have trouble breathing or chest pain
- You can't keep fluids down or you feel faint or too weak to stand
Call 911 for a medical emergency. Otherwise, urgent care or your doctor can see you today.
When to test
- Within 72 hours of a possible exposureGo to an emergency room or urgent care clinic, or see your health care provider right away, and ask about PEP, an emergency medicine that prevents HIV. Don't wait for symptoms. See our HIV PEP page.
- As soon as you are worried, with or without symptomsHIV.gov says to get an HIV test if you think you may have been exposed, whether you have symptoms or not. Order an online HIV test, and check whether it can detect early infection if the exposure was recent.
- After a negative result that came soon after an exposureYou may be advised to test again a few weeks later. How long to wait depends on the type of test. Our window periods page explains the differences.
Common questions
Are early HIV symptoms different in women and men?
According to HIV.gov, the symptoms of acute (early) HIV infection are generally similar for men and women. Fever, rash, night sweats, sore throat and swollen glands can appear in anyone.
How long do early HIV symptoms last?
HIV.gov says symptoms during the acute stage can last anywhere from a few days to several weeks. Once they fade, HIV is still there: the CDC says people who get HIV have it for life, although treatment can control the virus. Feeling better is not a result.
Can I have HIV and feel completely fine?
Yes. Some people have no symptoms in the early stage, and the CDC says people in the chronic stage may not feel sick but can still pass on HIV. This is why testing, not symptoms, is how you find out.
Can I pass on HIV if I have no symptoms?
Yes. The CDC says people in the early (acute) stage have a large amount of HIV in their blood and are very contagious, and that people in the chronic stage can transmit HIV even with no symptoms. If you think you may have HIV, use condoms and get tested.
Sources
This guide is general information written by a patient advocate using public health sources. It is not a diagnosis. Only a clinician who examines you, or a lab test, can tell you what you have. Read how we write and check our guides.