{"code":"BL40","name":"委中","pinyin":"Wěizhōng","meridianCode":"BL","meridianName":"足太阳膀胱经","meridianShortName":"膀胱经","color":"#2f5fb3","view":"back","part":"leg","x":248.0,"y":727.0,"bilateral":true,"category":"合穴（土）、膀胱之下合穴、四总穴之一","location":"在膝后区，腘横纹中点，股二头肌腱与半腱肌腱之间，腘动脉搏动处。","method":"俯卧或微屈膝，膝盖后面腘窝横纹的正中点即是，可摸到动脉搏动。","indications":["腰背痛、下肢痿痹","腹痛、急性吐泻","小便不利、遗尿","丹毒、瘾疹"],"mnemonic":"“腰背委中求”——腰背痛找委中；膝盖后面腘窝正中，急性腰扭伤点刺放血，古人称“血郄”。","note":"针刺时避开腘动脉、腘静脉","sortOrder":68,"common":{"rank":20,"usage":"腰背痛、腿抽筋，“腰背委中求”。","scenes":["颈肩腰腿"],"evidence":"腰痛的经典远端取穴，多项临床研究支持。"}}