There are relatively many causes of rear hamstring pain, including metatarsal fasciitis, Achilles tendon tenosynovitis, posterior bursitis of the Achilles tendon, simple bone cyst of the Achilles, ruptured Achilles tendon, epiphysitis of the Achilles, etc.
As the heel is an important structure in the body for maintaining static support, and the Achilles tendon is one of the largest and thickest tendons in the body, it is an important tissue for maintaining lower limb movement, standing and balance, so it is prone to injury from overload pressure and strain on a daily basis leading to various pathologies.