ADVERTISEMENT
The most common catalysts for these “angry” spots are mechanical injuries. We often see them after a finger is slammed in a heavy door, a toe is pinched by poorly fitting athletic shoes, or the palm of a hand is subjected to intense, repetitive friction from garden tools or sports equipment. In children, these injuries happen in the blink of an eye—a slip on the playground or a miscalculated grip on a bicycle handlebar. Because the skin remains intact, the body’s natural defense mechanism is to keep that fluid sealed away from external bacteria, creating a sterile environment for the healing process to begin.
When these blisters appear in the mouth, the emotional reaction is often even more intense. Oral blood blisters, or angina bullosa haemorrhagica, can appear on the tongue, the inside of the cheeks, or the palate. These are frequently triggered by accidental biting while eating, trauma from sharp dental appliances, or even the consumption of excessively hot or hard foods. While they look alarming against the pink backdrop of the mouth, their origin is usually just as mechanical and benign as a blister on the heel.
Instead, the protocol should be one of gentle vigilance. The area should be cleaned with mild soap and water, then patted dry—never rubbed. If the blister is in an area prone to further friction, such as the foot or the hand, it should be covered loosely with a breathable bandage or a specialized “donut” pad that relieves pressure from the center of the spot. Over the course of one to two weeks, the body will naturally reabsorb the fluid. The dark color will fade to a dull brown or tan as the blood breaks down, and eventually, the dried skin will peel away to reveal healthy, new tissue underneath.
ADVERTISEMENT