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What Causes Blood Blisters?

A standard blister that appears on the skin is usually filled with a white-yellow liquid (pus). However, blisters can be filled with many different types of fluids that include serum, plasma, and even blood. A blood blister is any kind of raised skin with blood underneath it. Even though these blisters have an odd appearance to them that makes it seem like they are harmful, blood blisters don't usually cause health complications and should disappear completely within several weeks, which is true even if they don't obtain treatment for the blister. These blisters vary in size and are filled with a mixture of blood from a ruptured blood vessel and clear liquid. When individuals are affected by one of these blisters, the color of the blister can be reddish, purplish, or even black. In most cases, they will start out with a bright red before becoming darker over time. These blisters can appear in areas of the body where high amounts of pressure are placed, including the feet, hands, mouth, and certain bony areas.

Wearing Ill-Fitting Shoes

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Blood blisters occur because the skin is pinched or heavily impacted without breaking, which means blood pools to the surface without having anywhere to go. Among the most common ways for blood blisters to occur is by wearing ill-fitting shoes. The shoes individuals wear should never be tight around any part of the foot. Their feet should be able to slip into the shoes without issue or struggle. While individuals might want to purchase a pair of shoes because they think they will look good but don't necessarily feel good, it's important to understand just how damaging this can be to the health of their feet. Along with blood blisters, wearing ill-fitting shoes can increase the amount of pain experienced in the feet while also causing such foot deformities as neuropathy. Peripheral neuropathy is considered an irreversible problem that can make it feel as though there are pressure points in an individual's feet that cause pain every time they walk or play sports. If the shoes individuals are wearing are too tight and place consistent pressure on their skin, a blood blister may develop because of how the shoes rub against the skin.

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