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Causes of Blisters

Monday, 12 February 2018 00:00

If you see a bubble-like area filled with fluid on the foot, you are most likely experiencing a blister. Friction is the most common cause of this condition, but there may be several other reasons for this to occur. Exposure to certain chemicals, an infection from an insect bite, or being the victim of a severe burn may all be contributing factors for developing a blister. The fluid in the blister is produced by the human body to cover the damaged area and protect the skin. Blisters commonly develop on the toes and the back of the foot due to friction. This is most often caused by walking and running long distances, in addition to wearing shoes that are ill-fitting. If your foot is exposed to extremely cold temperatures, blisters may appear because of tissue damage caused by frostbite. Generally, blisters will heal on their own. However, if the blister should burst causing an infection, it’s advised to seek the medical attention of a podiatrist.

Blisters are prone to making everyday activities extremely uncomfortable. If your feet are hurting, contact Dr. Phu Nguyen of Florida. Our doctor can provide the care you need to keep you pain-free and on your feet.

Foot Blisters

Foot blisters develop as a result of constantly wearing tight or ill-fitting footwear. This happens due to the constant rubbing from the shoe, which can often 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.

How do Blisters Form?

Blisters on the feet are often the result of constant friction of skin and material, usually by shoe rubbing. Walking in sandals, boots, or shoes that don’t fit properly for long periods of time can result in a blister. Having consistent foot moisture and humidity can easily lead to blister formation.

Prevention & Treatment

It is important to properly care for the affected area in order to prevent infection and ease the pain. Do not lance the blister and use a Band-Aid to provide pain relief. Also, be sure to keep your feet dry and wear proper fitting shoes. If you see blood or pus in a blister, seek assistance from a podiatrist.


If you have any questions, please feel free to contact our office located in Miami, FL. We offer the newest diagnostic and treatment technologies for all your foot care needs.

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