A：正常膝关节本身就存在少量关节滑液，起到润滑、营养软骨的作用，就像机器润滑油。很多健康人群核磁都会检出少量滑液信号，属于生理现象，无需治疗。

穿刺抽液一般用于这些情况：

半月板损伤、韧带撕裂、骨关节炎、色素沉着绒毛结节性滑膜炎，都会诱发积液增多，需要针对性处理原发病，才能解决积液反复的问题。

BuGu Rehabilitation Medical Center focuses on sports medicine and musculoskeletal rehabilitation. We provide professional and individualized treatment solutions covering pre-operative and post-operative orthopedic rehabilitation, scoliosis screening and correction (custom scoliosis bracing), sports injury rehabilitation, musculoskeletal pain management (cervical, shoulder, lumbar and leg pain), posture correction, neurological rehabilitation, as well as foot and ankle rehabilitation (custom orthotic insoles).

布骨康复往期精选科普：

《坐着躺着不痛，一走腰骶就刺痛？警惕骶髂关节问题》

《半月板是什么？撕裂后一定要手术吗？》

《身体有病，腿先知？双腿 3 种肿胀异常，别自己瞎按》