Weakness and tenderness of the legs may be caused by lumbar disc herniation, spinal cord cervical spondylosis, myasthenia gravis and other diseases.
1. Lumbar disc herniation: a degenerative disease caused by the herniated nucleus pulposus of the lumbar disc compressing the nerve root, mainly manifested as lumbar pain, numbness of the lower limbs, weakness and weakness of the lower limbs and other symptoms.
2. Spinal cord cervical spondylosis: It is a kind of cervical spondylosis caused by the herniated cervical intervertebral disc compressing the spinal cord or the blood vessels supplying it, which leads to the damage of the spinal cord. It is characterized by abnormal urination and defecation, abnormal sensation of limbs, such as weakness and tenderness of arms and legs.
3. Myasthenia gravis: It is due to muscle contraction weakness caused by neuromuscular transmission disorders, and there is a feeling of fatigue during activities, which gradually progresses to muscle weakness and causes difficulty in swallowing and weakness and tenderness of the legs.
If the symptoms of weakness and tenderness are not relieved after sufficient rest, it is also necessary to exclude excessive exercise, varicose veins of the lower limbs, arterial embolism and electrolyte disorders, etc., and go to the hospital in time for treatment.