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277 days ago
Unfiled. Edited by 林立云 277 days ago
Burns that affect only the superficial skin layers are known as superficial or first-degree burns. They appear red without blisters and pain typically lasts around three days.[3][4] When the injury extends into some of the underlying skin layer, it is a partial-thickness or second-degree burn. Blisters are frequently present and they are often very painful. Healing can require up to eight weeks and scarring(疤痕) may occur. In a full-thickness or third-degree burn, the injury extends to all layers of the skin. Often there is no pain and the burn area is stiff. Healing typically does not occur on its own. A fourth-degree burn additionally involves injury to deeper tissues, such as muscle(肌肉), tendons(), or bone(骨骼).[3] The burn is often black and frequently leads to loss of the burned part.[3][5]
表皮灼傷又稱為一級灼傷。皮膚呈現紅色 但沒有水泡,疼痛通常持續三天[3][4] 。當灼傷的範圍傷及表皮下方皮層,這情況稱為部分皮層灼傷或二級灼傷。普遍可見水泡且非常疼痛,需要八星期痊愈,並可能留下疤痕。全層灼傷或三級灼傷是指每層皮膚均受傷。大多數情況下,患者不會感受到痛楚,其灼傷範圍變硬,不會自行痊愈。四級灼傷指更深層組織受創,如肌肉骨骼受傷[3]。灼傷部位變黑而一般需要被移除[3][5]

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