Sexually Transmitted Infections (STIs) That Cause Flu-Like Symptoms

STIs that cause flu like symptoms

When you start feeling under the weather with a fever, fatigue, muscle aches, or swollen lymph nodes, your first thought is probably the flu. But did you know that some sexually transmitted infections (STIs) can also cause these same symptoms? If you’ve recently had unprotected sex and are experiencing these symptoms, it’s important to consider getting tested.

What Are Flu-Like Symptoms?

Flu-like symptoms can include:

  • Fever or chills
  • Fatigue and body aches
  • Headaches
  • Swollen lymph nodes
  • Sore throat
  • Night sweats
  • Nausea or loss of appetite

While these are commonly associated with viral infections like the flu or a cold, they can also be early warning signs of certain STIs.

Which STIs Cause Flu-Like Symptoms?

Several STIs can cause symptoms similar to the flu, including:

  • HIV (Human Immunodeficiency Virus)
    • Acute HIV infection (seroconversion illness) occurs 2-4 weeks after exposure.
    • Symptoms include fever, sore throat, swollen lymph nodes, night sweats, and muscle aches.
    • These early symptoms can be mistaken for the flu, but testing is crucial for early diagnosis.
  • Syphilis
    • In the secondary stage, syphilis can cause flu-like symptoms, including fever, fatigue, and swollen lymph nodes.
    • A rash may also appear on the palms, soles, or other parts of the body.
  • Herpes (HSV-1 & HSV-2)
    • Initial herpes outbreaks can cause fever, muscle aches, and swollen lymph nodes.
    • Painful blisters or sores often accompany these symptoms.
  • Hepatitis B & C
    • Hepatitis viruses, which can be transmitted sexually, may cause flu-like symptoms along with nausea, jaundice (yellowing of the skin and eyes), and fatigue.
  • Gonorrhea & Chlamydia (if left untreated)
    • In rare cases, untreated gonorrhea or chlamydia can spread into the bloodstream, causing fever, joint pain, and fatigue.
STD and symptoms

What Does That Mean for You as a Patient?

If you’re experiencing flu-like symptoms and have recently had unprotected sex, consider the following:

  • Are you also experiencing genital symptoms? (Burning during urination, unusual discharge, or sores.)
  • Did your symptoms start a few weeks after a new sexual partner?
  • Are your symptoms lingering longer than a typical cold or flu?

If the answer to any of these is yes, getting tested for STIs is a smart next step.

Solutions: What to Do If You Have Flu-Like Symptoms

  • Get tested: QUICKmed offers confidential at-home STI testing kits and in-person screenings.
  • Monitor your symptoms: If symptoms persist beyond a few days or worsen, seek medical attention.
  • Stay hydrated and rest: Regardless of the cause, taking care of your body is key.
  • Seek treatment: If an STI is the cause, antibiotics or antiviral medications can help manage or cure the infection.

Preventative Measures: How to Reduce Your Risk

  • Use protection: Condoms and dental dams lower the risk of transmission.
  • Get vaccinated: The HPV and hepatitis B vaccines can protect against serious infections.
  • Regular STI screenings: Routine testing helps detect infections early.
  • Communicate with partners: Open discussions about sexual health and testing history can help prevent STIs.

Find Answers with QUICKmed

If you’re feeling flu-like symptoms but suspect it could be an STI, don’t wait. QUICKmed offers discreet, reliable testing and virtual consultations to help you get the care you need.

Alt text: QUICKmed’s at-home STI testing kit, providing an easy and confidential way to screen for STIs.

Take control of your health today. Order a test kit or schedule a consultation with QUICKmed.

Confused about STDs vs. STIs? Learn the key differences and the importance of early detection. Discover QUICKmed's private, at-home STI test kits for quick, reliable results in Ohio.

Share this post if you found it helpful!

Jessica Creative Strategies