右手小指麻木而无力应该是压迫神经。

来自林燕医生的专业解答，快打开看看是否又获得了新的知识点～

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快速问医生

病情分析：您好，这种情况一般都是肘关节尺神经受压导致，原因多是频繁收缩前臂肌肉引起肘管炎症水肿，卡压尺神经，产生麻木严重的有肌肉萎缩，建议到医院做前臂肌电图检查。

林燕

副主任医师

提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医