如果肌腱、韧带或半月板损伤了，膝盖就可能会肿大。别的情况如关节炎或过劳都会造成膝盖肿胀。肿胀可能是膝盖关节或其他附近的组织中发生的，后者人们称为“膝盖上进水”。软组织上强力的碰撞伤害可能会让组织液或血液积蓄、肿胀。治疗膝盖肿胀的方法要根据是急性膝盖伤还是慢性的来选择。这篇文章会告诉你在两种情况下分别要怎么治疗。
步骤
方法 1 的 2:
急性膝盖肿胀
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1
放松膝盖，尽量不要走动。
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2
如果伸直膝盖会感到疼痛，用副拐杖。
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3
在患处直接敷上冰块，敷大约20分钟。然后拿下20分钟。重复两次，每天做三次来消除肿胀。
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4
那个湿热的毛巾或热水瓶敷，或者洗个热水澡，来减轻肿胀后带来的疼痛。
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5
把膝盖用弹性绷带绑住，来施加压迫力。可以用个带扣件的绷带，这样就不用夹子固定了。
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6
躺下的时候让膝盖抬到心脏以上。把膝盖和脚放在枕头上或沙发扶手上。
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7
用非处方镇痛药减轻疼痛。如果还有疼痛，去看医生，医生可能会给你开非固醇类的消炎药，或肌肉松弛剂。
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8
根据医嘱，适当涂上局部止痛药。也可以用利多卡因镇痛药贴来缓解疼痛。
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9
如果肿的太大，如果膝盖变得太重，或者严重变形，或者有发烧、膝盖发红现象（可能是感染症状），都要去看医生。如果大概4天后还没好，要去看医生。这时你的韧带可能已经损伤了。
方法 2 的 2:
慢性膝盖肿胀
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1
向理疗医师寻求如何运动来伸展膝盖附近的肌肉。
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2
如果经常用到膝盖，要戴上一个有垫子的护膝。如果可以的话，在跪着膝盖的时候多做休息。
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3
根据矫形医师建议，在鞋子里用足弓垫。这东西可以把膝盖上由于骨关节障碍或其他症状产生的的过高压力转移到别处。
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4
不要重复做下蹲动作、否则会造成膝盖受伤肿胀。
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5
吃点膳食补充剂，比如葡萄糖胺等等。这些东西对消肿和关节炎痛可能有效果。
小提示
- 要冷敷膝盖，可以用一袋冰冻豌豆、冰袋，或者冰冻的米饭。
警告
- 阿司匹林和布洛芬等等的消炎药可能可以缓解疼痛，但是长期使用也有一些副作用。