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HIV Prevention: What You Need to Know

Human immunodeficiency virus (HIV) attacks the body’s immune system. Without treatment, HIV can progress to AIDS. Today, effective prevention methods and HIV medicines can significantly reduce the risk of transmission and help people living with HIV live long, healthy lives.

The good news is that there are several proven ways to prevent HIV.

How Is HIV Transmitted?

HIV can be transmitted when certain body fluids from a person with HIV enter another person’s bloodstream or come into contact with certain mucous membranes or damaged tissue.

Common routes of transmission include:

• Anal or vaginal sex without appropriate HIV prevention measures
• Sharing needles, syringes, or other equipment used to inject drugs
• Transmission from a person with HIV to a baby during pregnancy, childbirth, or breastfeeding
• Less commonly, certain occupational exposures involving infected blood

HIV is not spread through ordinary everyday contact such as hugging, shaking hands, sharing food, using the same toilet, or being around someone who has HIV.

1. Use Condoms Correctly

Using condoms correctly and consistently can significantly reduce the risk of HIV and other sexually transmitted infections (STIs).

Use a new condom for every act of vaginal or anal sex. Follow the package instructions and check the expiration date before use.

For people who are sexually active, combining condoms with other prevention methods can provide additional protection.

2. Consider PrEP

PrEP, or pre-exposure prophylaxis, is medication taken by people who do not have HIV to reduce their chance of acquiring HIV.

When taken as prescribed, PrEP is highly effective at preventing HIV through sex. Depending on the medication and situation, PrEP may be available as daily oral medication or as a long-acting injectable option.

PrEP is prescription medication, so speak with a healthcare professional to determine whether it is appropriate for you.

3. Know About PEP

PEP, or post-exposure prophylaxis, is an emergency HIV prevention treatment used after a possible exposure.

PEP must be started as soon as possible and within 72 hours of a potential HIV exposure. It is taken for 28 days.

PEP is not intended to replace regular prevention methods such as PrEP or condoms.

If you think you have recently been exposed to HIV, seek medical care immediately rather than waiting for symptoms.

4. Get Tested for HIV

Knowing your HIV status is an important part of prevention.

Many people with HIV may not have symptoms, especially during the early stages of infection. Testing is therefore important even when you feel healthy.

Regular testing can help you:

• Know your current HIV status
• Access treatment early if you have HIV
• Make informed decisions about prevention
• Protect your sexual partners
• Discuss PrEP or other prevention options with a healthcare professional

Ask your healthcare provider how frequently you should be tested based on your individual circumstances.

5. Understand U=U

One of the most important developments in HIV prevention is U=U — Undetectable = Untransmittable.

People living with HIV who take their medication as prescribed and maintain an undetectable viral load have zero risk of sexually transmitting HIV to their HIV-negative sexual partners.

Regular medical care and adherence to HIV treatment are essential for maintaining an undetectable viral load.

6. Never Share Needles or Injection Equipment

Sharing needles, syringes, or other equipment used to inject drugs can expose a person to HIV-infected blood.

If you inject drugs, never share needles or other injection equipment. Speak with a healthcare professional or a local harm-reduction service about available resources that can help reduce the risk of HIV and other infections.

7. Prevent HIV During Pregnancy

HIV can be transmitted from a mother to her baby during pregnancy, childbirth, or breastfeeding.

However, appropriate HIV testing, medical care, and treatment during pregnancy can dramatically reduce the risk of transmission.

If you are pregnant or planning to become pregnant, talk with your healthcare provider about HIV testing and prevention.

8. Treat Other Sexually Transmitted Infections

Having certain STIs can increase the risk of acquiring or transmitting HIV.

Regular sexual health checkups, appropriate STI testing, and treatment can therefore be an important part of maintaining sexual health.

If you have symptoms such as unusual discharge, sores, burning during urination, or other concerns, speak with a healthcare professional.

9. Communicate With Your Sexual Partners

Open and honest communication can help partners make informed decisions about sexual health.

Consider discussing:

• HIV testing
• STI testing
• Condom use
• PrEP
• Sexual health history
• HIV treatment and viral load, when relevant

These conversations may feel uncomfortable at first, but they can help both partners make informed choices.

Can HIV Be Prevented?

Yes. There are multiple effective tools for preventing HIV, including condoms, PrEP, PEP after a potential exposure, HIV testing, avoiding shared injection equipment, and effective HIV treatment.

The best prevention strategy depends on your individual circumstances.

You do not have to rely on one method alone. Combining prevention strategies can provide additional protection.

What Should You Do After a Possible HIV Exposure?

If you believe you may have recently been exposed to HIV, do not wait for symptoms.

Contact a healthcare professional or seek urgent medical care as soon as possible. Ask about PEP, which needs to be started within 72 hours of a potential exposure and works best when started as soon as possible.

You may also need HIV testing and follow-up testing based on your healthcare provider’s recommendations.

Take Control of Your Sexual Health

Preventing HIV starts with information, testing, and choosing prevention methods that work for you.

Whether you are considering PrEP, need HIV testing, have questions about condoms, or are concerned about a possible exposure, talking with a qualified healthcare professional can help you understand your options.

Doctor Elizabeth Pharmacy Is Here to Support Your Health

At Doctor Elizabeth Pharmacy, we believe everyone should have access to clear, respectful, and reliable health information.

If you have questions about medications, prevention, or your general health, speak with a qualified healthcare professional or pharmacist.

[Contact Doctor Elizabeth Pharmacy]

Medical Disclaimer

This article is provided for general educational purposes and is not a substitute for medical advice, diagnosis, or treatment. HIV prevention and treatment decisions should be made with a qualified healthcare professional based on your individual circumstances.

If you believe you have been exposed to HIV within the past 72 hours, seek medical care promptly and ask about PEP.

Trusted Sources

• Centers for Disease Control and Prevention (CDC)
• National Institutes of Health (NIH)
• HIV.gov

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Understanding the Causes of Cancer and How to Reduce Your Risk

Cancer is not just one disease. It is a group of diseases that can develop when genetic changes cause cells to grow and divide abnormally. These changes can happen naturally as cells divide, develop because of environmental exposures, or sometimes be inherited from a parent.

While there is no guaranteed way to prevent every type of cancer, many known risk factors can be avoided or reduced. Making healthier choices, avoiding tobacco, protecting your skin, maintaining a healthy weight, staying physically active, getting recommended vaccinations, and following appropriate screening recommendations can all help lower your risk.

What Causes Cancer?

Cancer develops through changes in the genes that control how cells grow and function. These changes can accumulate over time.

Some important factors associated with cancer risk include:

1. Tobacco Use

Tobacco is one of the most important preventable causes of cancer. Smoking and other forms of tobacco use are linked to numerous cancers, including cancers of the lung, mouth, throat, esophagus, bladder, kidney, stomach, pancreas, and cervix.

Exposure to secondhand smoke can also increase cancer risk.

How to reduce your risk:
If you smoke, quitting is one of the most important things you can do for your health. Avoiding tobacco products and secondhand smoke can substantially reduce your exposure to cancer-causing substances.

2. Alcohol Consumption

Alcohol is a known cancer-causing substance. Regular alcohol consumption is associated with increased risk of several cancers, including cancers of the mouth, throat, esophagus, liver, breast, colon, and rectum. Risk generally increases as alcohol consumption increases.

How to reduce your risk:
Limiting alcohol consumption—or avoiding alcohol altogether—can help reduce your risk.

3. Excess Body Weight and Physical Inactivity

Having excess body weight and being physically inactive are associated with increased risk for certain cancers. Maintaining a healthy weight and being physically active are important parts of cancer prevention.

How to reduce your risk:
Aim for regular physical activity and a balanced eating pattern that includes plenty of vegetables, fruits, whole grains, and other nutritious foods.

4. Unhealthy Diet

Diet can influence cancer risk, although the relationship between individual foods and cancer is complex. Rather than focusing on a single “cancer-fighting” food, focus on an overall healthy eating pattern.

How to reduce your risk:
Choose a variety of vegetables, fruits, whole grains, beans, and other nutrient-rich foods, while limiting highly processed foods and excessive consumption of foods high in added sugars and unhealthy fats.

5. Sun and UV Radiation

Ultraviolet (UV) radiation from the sun is a major cause of skin cancer. Excessive exposure can damage DNA in skin cells and contribute to the development of cancer.

How to reduce your risk:

• Use broad-spectrum sunscreen when appropriate.
• Seek shade when the sun’s rays are strongest.
• Wear protective clothing, a hat, and sunglasses.
• Avoid indoor tanning.

6. Certain Infections

Some infections can increase the risk of cancer. Human papillomavirus (HPV), for example, is associated with several cancers. Certain forms of hepatitis B and C can also contribute to liver cancer risk.

How to reduce your risk:
Talk with your healthcare professional about recommended vaccinations, including HPV and hepatitis B vaccination when appropriate.

7. Environmental and Workplace Exposures

Some chemicals, pollutants, and other environmental exposures have been associated with cancer. Examples include certain substances found in tobacco smoke, asbestos, and some workplace chemicals.

How to reduce your risk:
Follow workplace safety requirements, use appropriate protective equipment, and follow guidance for handling potentially hazardous substances.

8. Family History and Genetics

Some people inherit genetic changes that increase their risk of developing certain cancers. However, having a family member with cancer does not mean that you will necessarily develop cancer. Only a relatively small proportion of cancers are linked to inherited genetic changes.

What you can do:
Know your family’s cancer history and discuss significant patterns of cancer in your family with your healthcare professional. Depending on your history, genetic counseling or testing may be appropriate.

9. Age

Cancer risk generally increases as people get older because genetic changes can accumulate in cells over time. Age is a risk factor that cannot be changed.

This makes appropriate preventive care and recommended cancer screening especially important as we age.

How Can You Help Prevent Cancer?

There is no guaranteed way to prevent cancer, but there are practical steps that can lower your risk.

Don’t Smoke

If you smoke, consider making a plan to quit. Avoiding tobacco is one of the most important steps you can take to reduce your cancer risk.

Stay Physically Active

Regular physical activity can contribute to maintaining a healthy weight and may lower the risk of several cancers. Find activities you enjoy and make movement part of your everyday routine.

Maintain a Healthy Weight

Excess body weight is associated with an increased risk of several cancers. A balanced diet and regular physical activity can help support a healthy weight.

Eat a Balanced Diet

Focus on an overall healthy eating pattern rather than relying on individual foods, supplements, or “miracle” products to prevent cancer.

Protect Your Skin

Reduce unnecessary exposure to UV radiation by seeking shade, wearing protective clothing, and using sunscreen appropriately.

Limit Alcohol

If you drink alcohol, limiting your intake can reduce alcohol-related cancer risk.

Stay Up to Date With Recommended Vaccinations

Vaccines can help prevent infections associated with certain cancers. Talk with your healthcare professional about whether vaccines such as HPV and hepatitis B are appropriate for you.

Follow Recommended Cancer Screening

Some screening tests can detect cancer early, while certain screening approaches can also identify precancerous changes before they develop into cancer. Recommended screening depends on factors such as age, sex, personal history, and individual risk.

Talk with your healthcare provider about which screenings are appropriate for you.

Can Cancer Always Be Prevented?

No.

It is important to understand that healthy choices can reduce cancer risk but cannot eliminate it completely. Cancer can develop because of a combination of genetics, aging, environmental exposures, lifestyle factors, and changes that occur naturally as cells divide.

That is why prevention, healthy habits, vaccination when appropriate, and recommended screening all have an important role in maintaining your health.

Take Charge of Your Health

You don’t have to make every change at once.

Start with realistic steps: avoid tobacco, stay active, eat a balanced diet, protect your skin from excessive UV exposure, limit alcohol, maintain a healthy weight, and keep up with recommended preventive healthcare.

If you have questions about your medications, vitamins, supplements, vaccinations, or general health, speak with your healthcare professional or pharmacist.

Your Health Matters to Us

At Doctor Elizabeth Pharmacy, we’re committed to helping our community make informed decisions about their health and medications.

Have questions about your medications, supplements, or preventive health? Talk with our pharmacy team today.

[Contact Doctor Elizabeth Pharmacy]

Medical Disclaimer

This article is intended for general educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. Cancer risk varies from person to person. Talk with your doctor or other qualified healthcare professional about your individual cancer risk, preventive care, vaccinations, and recommended screening.

Sources: National Cancer Institute and American Cancer Society.