Yes, blood blisters change in appearance and typically disappear over time.
A blood blister, similar to a regular blister but filled with blood instead of clear fluid, undergoes several changes as it heals:
- Initial Appearance: They start as raised areas of skin filled with red fluid due to damaged blood vessels. The color is typically bright red initially.
- Color Change: The color darkens over time. The red fluid may turn darker red, purple, or even black as the blood within the blister clots. This color change is normal and indicates the healing process.
- Size Change: The size may remain constant or slightly decrease as the body reabsorbs the fluid.
- Disappearance: A blood blister usually disappears within one to two weeks. The fluid is reabsorbed by the body, and the damaged skin underneath heals.
It's important to avoid popping a blood blister to prevent infection. If the blood blister is painful or shows signs of infection (increased pain, swelling, redness, pus), consult a healthcare professional.
