Visual metaphor depicting one of the primary symptoms of hereditary spastic paraplegia—progressive stiffness and weakness in the lower limbs, leading to impaired mobility.

Symbolic image showing a person burdened by a ball and chain to represent walking difficulties and leg stiffness caused by hereditary spastic paraplegia.
Visual metaphor depicting one of the primary symptoms of hereditary spastic paraplegia—progressive stiffness and weakness in the lower limbs, leading to impaired mobility.