Professor Pei ZhengxueAcademic Profile

Pei Zhengxue Health Weibo, Volume 3

6. Left Leg Pain and Numbness

Chapter 249

**Zhang Xuefu:** My third uncle often experiences pain in his left leg, sometimes so severe that he can't sleep. Sometimes, when I pinch his leg, he loses sensation. What could be the cause?

From Pei Zhengxue Health Weibo, Volume 3 · Read time 1 min · Updated March 22, 2026

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Section Index

  1. 6. Left Leg Pain and Numbness

6. Left Leg Pain and Numbness

Zhang Xuefu: My third uncle often experiences pain in his left leg, sometimes so severe that he can't sleep. Sometimes, when I pinch his leg, he loses sensation. What could be the cause?

Answer: Loss of sensation when pinching indicates loss of superficial sensation. First, consider peripheral neuropathy. I recommend taking methylcobalamin first; if that doesn't work, see a specialist.

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