What Is a Blister?

A blister is defined as a small area that is filled with fluid on the surface of the skin. It is typically the result of increased friction in that portion of the skin, and generally occurs when the foot regularly rubs against tight shoes. When blisters develop on the feet, it may be difficult and painful to walk, and equally hard to treat. There are several causes why this uncomfortable foot condition may develop, including wearing shoes and socks that are too tight, allergic reactions to an insect bite, or the debilitating condition known as frostbite which may damage blood vessels in the skin. Research has shown the average blister will heal on its own within a few days, and it’s important to leave them alone while they are filled with fluid. If you are noticing blisters on your feet often, it is suggested to speak with a podiatrist who can guide you in choosing the correct shoes which may alleviate this condition from occurring.


<!–><!––><!––>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 Princeton Foot & Ankle Associates. 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 one of our offices located in Princeton and West Windsor, NJ. We offer the newest diagnostic and treatment technologies for all your foot care needs.

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