Right hemiplegia may be caused by pyriformis syndrome, lumbar disc herniation, sciatic bursitis, etc. The specific cause needs to be examined in the hospital to determine. 1. Piriformis syndrome: Piriformis syndrome may be caused by hip sprains, weight-bearing walking, cold and other reasons, the patient’s affected side of the buttock will have severe pain, pain can be radiated to the calf and foot, the condition is more serious may also have difficulty walking. 2. Lumbar disc herniation: Lumbar disc herniation is usually caused by injury, heredity, abnormal development of lumbar vertebrae, degeneration of intervertebral discs, etc. The first symptom of the patient is lumbar pain, which radiates to the buttocks and causes sciatica, and some of the patients may also suffer from the symptoms of decrease in muscle strength of lower limbs and urinary dysfunction. 3. Sciatic Nodal Bursitis: Sciatic Nodal Bursitis may be caused by buttock friction, overstrain and other reasons, the pain is mainly manifested in the tip of the buttocks, the symptoms are serious, may not be able to sit down. There are many reasons for the pain in the right half of the buttocks, if you have any symptoms, you should go to the hospital in time, and follow the doctor’s instructions for treatment after diagnosis.