Blood blisters are a common skin condition that can appear suddenly and often look more serious than they actually are. Unlike regular blisters that contain clear fluid, blood blisters are filled with blood that becomes trapped beneath the skin.
This gives them a distinctive dark red, purple, or almost black appearance, which can understandably cause concern when they first develop. In most cases, blood blisters are not dangerous and tend to heal on their own over time.
They are typically the result of minor injuries that affect small blood vessels under the skin while leaving the outer layer intact. Even though they may look…
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