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Can Strep Throat Cause Nausea and Vomiting?

February 10, 2025

Strep throat is a common bacterial infection that affects the throat and tonsils, causing symptoms such as sore throat, difficulty swallowing, and fever. While most people associate strep throat with these classic symptoms, some may experience unexpected gastrointestinal issues, such as nausea or vomiting. If you’re suffering from strep throat and experiencing stomach-related symptoms, keep reading to learn more and know when to seek medical attention.

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Understanding Strep Throat

Strep throat is caused by the bacteria Streptococcus pyogenes, also known as group A streptococcus. It spreads through respiratory droplets from an infected person, making it highly contagious. While it most commonly affects children and teenagers, adults can also contract strep throat. Symptoms typically develop within 2 to 5 days after exposure and can vary from person to person depending on the severity of infection.

Common symptoms of strep throat include:

  • Severe sore throat
  • Pain when swallowing
  • Red and swollen tonsils, sometimes with patches or pus
  • Swollen lymph nodes in the neck
  • Headache
  • Fever
  • Fatigue

While these symptoms are well-known, gastrointestinal symptoms such as nausea, vomiting, and stomach pain are less commonly discussed but can still occur, especially in children.

Why Does Strep Throat Cause Nausea and Vomiting?

Strep throat can trigger nausea and vomiting for several reasons, including:

Toxin Production

Group A streptococcus bacteria produces toxins that can affect different parts of the body. These toxins may cause systemic symptoms, including stomach discomfort, nausea, and vomiting.

Fever and Dehydration

A high fever is a common symptom of strep throat. Fevers can lead to dehydration, which may contribute to nausea and an upset stomach. Young children, in particular, may be more susceptible to these effects due to their smaller bodies and higher fluid needs.

Immune System Response

When the immune system fights off an infection, it triggers inflammation throughout the body. This response can sometimes lead to gastrointestinal distress, including nausea and vomiting.

Postnasal Drip and Mucus Buildup

Strep throat often causes an increase in mucus production. Excess mucus can lead to postnasal drip, which irritates the stomach and may result in nausea or vomiting, especially in children.

When To Seek Medical Attention

If you or your child has symptoms of strep throat along with nausea or vomiting, it’s important to seek medical attention. A healthcare provider can perform a rapid strep test or throat culture to confirm the diagnosis and prescribe treatment. Once diagnosed, strep throat is typically treated with antibiotics to eliminate the infection and reduce symptoms. To ease nausea and vomiting, be sure to stay hydrated, eat bland foods, rest, and use over-the-counter pain relievers. Left untreated, strep throat can lead to serious complications so it’s always best to consult a healthcare professional when feeling under the weather.

Get Same-Day Treatment at AFC Urgent Care Denver Highlands

While nausea and vomiting are not the most common symptoms of strep throat, they can still occur, particularly in children. Understanding how strep throat affects the body can help you recognize these symptoms early and seek appropriate medical care. If you or a loved one experiences these symptoms, come visit the walk-in clinic at AFC Urgent Care Denver Highlands. Our medical team is available 7 days a week to provide a quick diagnosis and treatment plan to ensure a speedy recovery. With the right treatment, you can effectively alleviate your symptoms. Do you want to receive a diagnosis and treatment regimen from the comfort of your own home? We also provide telehealth services seven days a week– just choose your visit time here. If you have any additional questions, please contact our team directly at (303) 477-6000.

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