Sudden pain in the thigh that prevents you from walking is considered to be related to long-term muscle strain, lumbar disc herniation, sciatic neuritis, lower extremity arterial embolism and other diseases.
1. Long-term muscle strain: If the thigh muscles are subjected to long-term and repeated injuries, it will lead to chronic strain, recurrent pain in the thighs, aggravation of pain after activities, affecting walking.
2. Lumbar intervertebral disc herniation: patients first experience recurrent lumbar pain, and then leg pain over time. If the protruding intervertebral discs irritate and compress the nerve roots, there will be numbness and weakness in the limbs, which will affect walking.
3. Sciatic neuritis: Piriformis syndrome can cause sciatic neuritis due to muscle adhesion, often manifested as pain in the buttocks, posterior thigh and posterior lateral calf, mostly radiating, and when the pain worsens, it will lead to difficulty in walking.
4. Lower extremity arterial embolism: if the patient has arterial stenosis, atheromatous plaque, insufficient blood supply, the embolus suddenly fall off will cause arterial embolism, which will lead to leg pain and can not walk symptoms.
Sudden pain in the thigh can not walk may also exist other reasons, such as hip synovitis, femoral head aseptic necrosis, lower extremity vasculitis, lumbar spinal stenosis. It is recommended to consult a doctor in time to find out the cause, so as not to delay the condition.