Right leg pain and foot numbness are mainly considered to be a problem with the sciatic nerve of the right lower limb, with corresponding symptoms of pain in the posterior thigh, pain in the lateral calf, and numbness in the dorsum of the lateral foot of the calf. Common diseases are lumbar disc herniation and pyriform outlet syndrome, which lead to diseases of compression of the sciatic nerve of the right lower limb. Symptoms of pain and numbness are aggravated by activity or bending movements, and can be alleviated by lying down and resting, and are also aggravated by increased abdominal pressure or increased chest pressure, such as coughing and defecation. When the symptoms gradually worsen, there are also symptoms of weakness of the lower limbs and loss of muscle strength. Symptoms should be examined in the hospital to see if there is any compression of the sciatic nerve tract or any other disease that may be causing the symptoms.