Flu shot is a preventive measure against influenza virus, commonly known as flu. Every year, during the flu season, people line up to get their flu shots. But, like any other medication, flu shots also have some side effects. One of the most debated side effects of flu shot is whether it can cause irregular heartbeat or not.
What is Irregular Heartbeat?
Irregular heartbeat, also known as arrhythmia, is a condition in which the heart beats irregularly or too fast or too slow. It can lead to various complications, including blood clots, stroke, and heart failure.
Flu Shot and Irregular Heartbeat
According to the Centers for Disease Control and Prevention (CDC), there is no evidence that flu shot can cause irregular heartbeat. However, some people may experience palpitations or a racing heart after getting a flu shot. These symptoms, although uncomfortable, are usually mild and go away on their own within a few hours or days.
Who is at Risk?
People with a history of heart disease or arrhythmia may be more susceptible to experiencing irregular heartbeat after getting a flu shot. However, the risk is still very low, and the benefits of getting a flu shot outweigh the risks for most people.
Other Side Effects of Flu Shot
Aside from palpitations, flu shot can cause other side effects, such as soreness, redness, and swelling at the injection site, fever, muscle aches, and fatigue. These side effects are usually mild and go away on their own within a few days.
If you have a history of heart disease or arrhythmia, or if you are concerned about the side effects of flu shot, you should talk to your doctor before getting a flu shot. Your doctor can help you weigh the risks and benefits of getting a flu shot and determine the best course of action for you.
Flu shot is an effective way to prevent flu, and it is recommended for most people, including those with heart disease or arrhythmia. While some people may experience palpitations or a racing heart after getting a flu shot, there is no evidence that flu shot can cause irregular heartbeat. If you are concerned about the side effects of flu shot, talk to your doctor before getting vaccinated.
1. Centers for Disease Control and Prevention. (2023). Flu Vaccine Safety Information. Retrieved from https://www.cdc.gov/flu/prevent/general.htm
2. American Heart Association. (2023). Arrhythmia. Retrieved from https://www.heart.org/en/health-topics/arrhythmia
3. Mayo Clinic. (2023). Flu Shot: Your Best Bet for Avoiding Influenza. Retrieved from https://www.mayoclinic.org/diseases-conditions/flu/in-depth/flu-shot/art-20045880