Blood blister

Introduction Skin, mucosal lesions caused by mechanical, chemical or physical stimuli, etc., when the stimulating factors are strong, the body can reflect blood blister when it is more rapid, and long-term chronic stimuli can cause ulcers. Mucosal blood blisters are prone to ulceration once they are ruptured and secondary to infection.

Cause

Causes of blood blisters

Mucosal blood blister is mainly due to eating too hot food, or rushing to chew large pieces of dry hard food and swallowing too fast and scratching the oral mucosa, causing blood blister, but also due to external force contusion or mis-bite buccal mucosa caused by blood blister.

an examination

Blood blister examination and diagnosis

According to the clear history of acute food or chewing, the history of mucous membranes, and unilateral blood blister, rapid occurrence, easy to break the blister wall, leaving fresh red wounds, etc., is not difficult to make a diagnosis.

Differential diagnosis

Blood confusing symptoms

Traumatic blood blister should be differentiated from oral mucosal blood blister with thrombocytopenic purpura. The former has a clear history of acute eating or chewing misuse of mucous membranes, and unilateral blood blister, rapid occurrence, easy to break the blister wall, leaving fresh red wounds, etc.; the latter blood blisters occur in the gums, sputum, cheeks, etc. More friction, the blister wall is thicker and can occur repeatedly. No obvious history of acute food.

According to the clear history of acute food or chewing, the history of mucous membranes, and unilateral blood blister, rapid occurrence, easy to break the blister wall, leaving fresh red wounds, etc., is not difficult to make a diagnosis.

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