- Blisters are bubbles filled with either clear or bloody liquid.
- There are different types of blisters but the most common are friction blisters which typically form on the feet or hands.
- Extreme temperatures, viral or bacterial infections, and chemical exposure can also cause blisters.
- If your blister hasn’t popped, the best thing to do is leave it alone and allow it to heal on its own.
Ah blisters, we’ve all been there! Most of us are familiar with those annoying, squishy bubbles that often form after breaking in a new pair of shoes. They’re not only a nuisance, but they can be quite painful too. Did you know there are many different types of blisters too? Some can be caused by extreme temperatures while others can be caused by viral or bacterial infections.
If you have a blister and you’re not quite sure what is causing it, follow along as we break down the different types of blisters and their causes. We’ll also look into if you should pop the blister or leave it alone as well as the best way to treat it.
Common Signs of a Blister
A blister forms on the uppermost layer of the skin, known as the epidermis. This layer serves a vital job of protecting and cushioning the layers below. So, how do you know if you have one for sure?
A blister “will appear as a localized bubble filled with either clear or bloody liquid,” explains Johns Hopkins Medicine. It may also be painful or itchy. When blisters have a systemic cause (such as an infection) you may have other symptoms too, such as pain, fever, or fatigue. They can appear on various parts of your body, depending on the cause.