Apr 30, 2021 · A blister is a painful skin condition where fluid fills a space between layers of skin. They form when something — like too-tight shoes — repeatedly rubs against your skin.

A blister is a small pocket of body fluid (lymph, serum, plasma, blood, or pus) within the upper layers of the skin, usually caused by forceful rubbing (friction), burning, freezing, chemical exposure or infection.

Jun 24, 2025 · Most are shaped like circles. Depending on the cause, your blister could itch or hurt a lot or a little. They can appear as a single bubble or in clusters.

A blister is a bubble containing fluid under the top layers of skin. Blisters are usually caused by injury, allergic reactions, or infections. The symptoms of a blister may look like other skin conditions. If you …

May 1, 2024 · Blisters are usually minor injuries that you can treat yourself. If a blister isn't too painful, try to keep it from breaking open. Unbroken skin over a blister may provide a natural barrier to …

Oct 15, 2025 · If a blister breaks, wash the area with soap and water, then apply a bandage. If a blister is very large or painful, your doctor may drain it and apply an antibacterial cream to prevent infection.

Dec 4, 2025 · There are several types of blisters, including friction, burn, and blood blisters. Read more about the various types below. Friction blisters are primarily caused by the repetitive action of...

Jun 6, 2025 · Blisters (vesicles) are raised parts of skin filled with fluid. Blisters are usually caused by repetitive friction between the skin and an abrasive object. For instance, you may get a blister...

Sep 9, 2025 · A blister looks like a tight bubble or a small sac of soft fluid. This article walks you through home treatment steps. Learn about autoimmune blisters.

Blisters What is a blister? A blister is a bubble containing fluid under the top layers of skin. Blisters are often shaped like a circle. The fluid that forms below the skin can be bloody or clear.