What’s wrong with a sore muscle from my butt to my calf?

A tendon pain from the buttocks to the calves may be due to lumbar disc herniation, sciatic neuritis, pear-shaped muscle syndrome.
1. Lumbar disc herniation: Lumbar disc herniation is a degenerative disease caused by partial rupture of the annulus fibrosus, which leads to irritation of the nucleus pulposus or compression of the nerve root, and the patient usually manifests lumbar pain and sciatica, and if it involves the lower limbs, it will also have radiating pain, numbness, and weakness and other uncomfortable symptoms.
2. Sciatic neuritis: sciatic neuritis is due to nerve root irritation and invasion, thus causing persistent or paroxysmal pain along the sciatic nerve pathway, mainly from the lumbosacral region through the buttocks to the lower limbs to the calf, so the buttocks to the calf a tendon pain may also be caused by sciatic neuritis.
3. Piriformis syndrome: Piriformis syndrome is caused by muscle adhesion in the piriformis muscle, which leads to stimulation and compression of the sciatic nerve passing between the muscles, resulting in inflammatory reaction of the sciatic nerve. The clinical manifestation is the soreness of a tendon from the buttock to the calf.
Due to the causes of buttock to calf a tendon pain more causes, when the patient appears related to the discomfort symptoms, it is recommended to go to the hospital in a timely manner to diagnose, as soon as possible to clarify the cause of the disease to take targeted treatment measures, to avoid misunderstanding of the condition caused by the aggravation of the symptoms.