Tuesday, 09 January 2024 00:00

Common Causes of Blisters in Runners

Running is an exhilarating pursuit, but for many avid runners, the nagging presence of blisters can turn each stride into a painful ordeal. Blisters are pockets of clear fluid that form on the feet and toes but are largely preventable with the right precautions. These bubbles arise from the friction and heat generated during running. The body's response is the formation of a protective fluid bubble between layers of skin, in an effort to prevent further harm. Blisters are characterized by clear liquid-filled bubbles, occasional redness, or bruising. They can even form beneath toenails, potentially resulting in black toenails if they burst. The primary causes of running blisters are improper shoe fit and wet running conditions. Ill-fitting shoes, whether too large or too tight, create friction, leading to these blister formations. Running in wet conditions simply compounds the issue. Rain, mud, or snow softens the skin, while the heat and sweat produced during running create a humid environment inside the shoe. This supplies a perfect environment for blisters. Neglecting proper care of blisters can increase pain and risk of infection. If you have persistent problems with blisters from running or have one that has become infected, it is suggested that you schedule an appointment with a podiatrist for treatment.

Blisters may appear as a single bubble or in a cluster. They can cause a lot of pain and may be filled with pus, blood, or watery serum. If your feet are hurting, contact one of our podiatrists of Fusion Foot and Ankle. Our doctors can provide the care you need to keep you pain-free and on your feet.

Foot Blisters

Foot blisters are often the result of friction. This happens due to the constant rubbing from shoes, which can lead to pain.

What Are Foot Blisters?

A foot blister is a small fluid-filled pocket that forms on the upper-most layer of the skin. Blisters are filled with clear fluid and can lead to blood drainage or pus if the area becomes infected.


(Blister symptoms may vary depending on what is causing them)

  • Bubble of skin filled with fluid
  • Redness
  • Moderate to severe pain
  • Itching

Prevention & Treatment

In order to prevent blisters, you should be sure to wear comfortable shoes with socks that cushion your feet and absorb sweat. Breaking a blister open may increase your chances of developing an infection. However, if your blister breaks, you should wash the area with soap and water immediately and then apply a bandage to the affected area. If your blisters cause severe pain it is important that you call your podiatrist right away.

If you have any questions, please feel free to contact our offices located in Fort Worth and Arlington, TX . We offer the newest diagnostic and treatment technologies for all your foot care needs.

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