Patients with blood crusts in the ears often shed them on their own. The formation of blood crusts in the ears is related to trauma to the ear, and may also be related to damage to the skin of the ear canal caused by excessive force when digging the ear, or even damage or perforation of the eardrum. Patients may experience a small amount of blood oozing from the damaged skin of the ear canal and the eardrum, gradually forming a blood crust to cover the wound. In this case, the patient should not forcibly remove the crust to avoid further damage to the skin of the ear canal or even the eardrum. If the crust persists in the ear for a longer period of time, it can also be cleaned and removed in the hospital.