Human immunodeficiency virus (HIV) it affects your body’s immune system by targeting the immune cells that protect you from infections. So you may be wondering what HIV does to the body. Knowing some of the basics can help you feel more informed and in control.
If you want to know what HVI does to the body, keep reading.
HIV can cause a wide variety of symptoms.
An overview of how HIV affects the body
When HIV enters the body, it starts by attacking the immune system, particularly the CD4 cells that help you fight infections. As the virus continues to multiply, the immune system works hard to respond.
During the initial stage of infection, the body produces antibodies to try to fight the virus. That’s part of it seroconversion processwhen your immune system begins to strengthen its defenses. These symptoms are common 4-6 weeks after infectionalthough not everyone will notice them.
After this initial stage, the virus remains active in the body even if symptoms subside. These early symptoms may disappear for 10-15 years oldbut HIV continues to grow inside your body. Over time, the immune system weakens, making it harder for the body to fight infections.
Physical symptoms of HIV: the acute phase
During the seroconversion process, the body’s immune response to the infection increases, which causes symptoms.
Flu-like symptoms
One of the most common symptoms is fever. Your body raises its internal temperature to create a hostile environment for any infections. You may also experience fatigue, swollen glands, muscle aches and a sore throat.
Rash
A rash is another notable symptom during early HIV infection. It can appear on the chest, back or face and can look like flat red spots or small bumps. Not everyone will develop a rash, but it is common enough that many people report it during the first few weeks of infection.
Physical symptoms of HIV: chronic infections
After the early stage of HIV infection, long-term physical symptoms can take years to appear.
Skin problems
A common long-term issue is its return skin problemssuch as rashes or irritation. As the immune system weakens, the body can become more susceptible to skin infections.
This may include:
- Bacterial infections such as cellulitis, ecthyma and ringworm
- Bacterial angiomatosis, a bacterial infection that causes hyperpigmented red or purple lesions
- Keratolysis with pit
- Increased number and severity of Herpes hearths
- shingles (Variella zoster virus)
- Molluscum contagiosum
- Yeast infections such as pityrosporum folliculitis and pityriasis versicolor
- Parasitic infections such as leishmaniasis and stringyloidiasis
- Skin malignancies such as squamous cell and basal cell carcinoma
- Psoriasis and eczema
Such problems are not limited to your skin. HIV can cause recurring problems in the mouth, such as:
- Sores in the mouth
- Cold sores caused by HSV 1
- Oral hairy leukoplakia (white plaques on the tongue caused by the Epstein-Barr virus)
- Gum in the mouth
- Cracks at the corners of the mouth
- Cauliflower-like bumps in the mouth caused by HPV
- Periodontal disease (bleeding red gums and bad breath)
- Dry mouth
Over time, the immune system can struggle to fight off even mild illnesses, which can lead to visible signs of ill health.
People may experience long-term fatigueswollen glands that do not go down, weight changes and sleep problems. These physical effects occur because HIV continues to damage immune system cells that help keep the body healthy.
How treatment changes the physical symptoms of HIV
Starting treatment early can make a big difference in how HIV affects the body. The treatment helps stop the virus from damaging the cells that protect you from infection, giving your immune system a chance to recover.
Antiretroviral therapy (ART) stops the virus from multiplying. This helps protect CD4 cells, which keep the immune system stronger for longer.
Over time, treatment can also reduce many of the physical symptoms associated with HIV. People who follow the treatment correctly are less likely to develop ongoing skin problems, recurrent infections or long-term fatigue. Because the immune system remains stronger, the body can fight disease more effectively and recover faster. This helps stop internal damage from becoming visible externally.
ART side effects
For those on HIV treatment, antiretroviral therapy can cause some other changes in the body, including:
- Weight gain/loss
- Rash
- Bone loss
- Nausea and vomiting
- Mood changes, including anxiety and depression
- Damage to the kidney, liver or pancreas
- Nerve damage (burning sensation in arm or leg)
- High blood sugar and diabetes
- Hypersensitivity and allergic reactions
How to test for HIV
Contrary to popular belief, you don’t have to wait for symptoms to get tested for HIV.
More than 25% of people who visit the clinic are over the age of 40, demonstrating that concerns about how prolonged viral infections can affect long-term immunity extend into adulthood.
A portion of patients purposefully combine HIV testing with hepatitis panels, highlighting proactive awareness of how specific co-infections can work together to affect liver and whole-body health.
With consistent treatment, most people living with HIV can stay healthy and live full, active lives. Treatment helps the body stay strong, protects against long-term health problems and greatly reduces the chances of passing the virus on to others. It turns HIV from a dangerous infection into a manageable condition, giving people control over their health and their future.
Final thoughts
HIV can affect the body in many different ways, both inside and out. Even after early symptoms fade, the virus can remain active in the body and continue to weaken the immune system if left untreated.
If you’re worried about HIV or think you might be at risk, getting tested is the best way to find out your status and protect your health. Better2Know offers fast, confidential, clinical HIV testing across the UK, helping you get accurate answers and support when you need it most.
Don’t leave your sexual health to chance.
