What Causes Canker Sores?

Life Planner Media

Canker sores, those pesky, painful ulcers that pop up inside your mouth, are more common than you might think. While they’re usually harmless, they can make eating, drinking, and talking a challenge. So, what causes them?

Understanding Canker Sores

Canker sores, also known as aphthous ulcers, are small, shallow lesions that develop on the soft tissues inside your mouth, like the inner cheeks, gums, or tongue. Unlike cold sores, which are caused by the herpes virus, canker sores are not contagious, but they are just as annoying.

What Causes Them?

The exact cause of canker sores is still a bit of a mystery, but there are several factors that may trigger them. Here are a few:

  • Injury or irritation: Biting the inside of your cheek or brushing your teeth too aggressively can lead to a sore.
  • Stress: Emotional stress and anxiety are known culprits for triggering canker sores in some people.
  • Hormonal changes: Women may experience canker sores more often during menstruation due to fluctuating hormone levels.
  • Vitamin deficiencies: A lack of certain nutrients, especially B12, folate, and iron, can increase the likelihood of developing canker sores.
  • Food sensitivities: Acidic foods, like tomatoes or citrus fruits, can irritate the inside of your mouth and lead to sores.

Fun Fact

Did you know that canker sores have been a mystery for centuries? The term "aphthous ulcer" comes from the Greek word "aphtha," which means "to decay." While we've learned more about their triggers, the exact biological cause is still not completely understood!

A Brief History of Canker Sores

Historically, canker sores were thought to be a form of leprosy or a sign of a contagious illness. Ancient texts mention painful mouth sores that were difficult to treat, but it wasn't until the 19th century that scientists began to differentiate them from other conditions. Today, we know they’re a common, mostly benign condition, but their frequent recurrence can still be a mystery to many.

What Can You Do About Them?

While there is no cure for canker sores, there are several ways to alleviate the pain and speed up healing:

  • Use an over-the-counter topical ointment to numb the area.
  • Rinse your mouth with salt water or an antimicrobial mouthwash.
  • Avoid spicy, acidic, or abrasive foods that can irritate the sores.

The Takeaway

Canker sores are common, and while their exact cause can vary, they’re usually nothing to worry about. Understanding the triggers and taking care of your oral health can help reduce their frequency. So, the next time you get one, just remember—it's likely temporary and will soon be gone!