A periorbital hematoma, commonly called a black eye, is bruising around the eye commonly due to an injury to the face rather than to the eye. The name refers to the dark-colored bruising which is the result accumulated blood and fluid in the loose areolar tissue following a blow to the head. This blood tracks freely under the scalp producing a generalised swelling over the dome of the skull but cannot pass into either occiptial or the temple regions because of the bony attachments of the Occipitofrontalis muscle. But this fluid can, however track forward into the eyelid because of the Occipitofrontalis muscle has no bony attachment anteriorly. This leads to formation of Hematoma a few hours after the head injury or cranial operation. If a more extensive injury, potentially even a skull fracture, an apparent black eye can sometimes worsen and may require professional medical treatment before it will resolve. This is more likely if the area around both eyes has been injured (raccoon eyes) or if there is a history of prior head injury or fracture around the eye. Though disfiguring, the vast majority of black eyes are not serious, require little or no treatment, and will resolve spontaneously within a week or two.