A paralysis of similar parts on two sides of the body: Children who are affected by diplegia in the legs will have problems playing sports; for example, football, because the muscles in the legs and hips make the legs turn towards the middle, crossing at the knees.

Diplegia also describes cerebral palsy which involves spastic weakness of all four limbs (both arms and both legs).

The paralysis of similar body parts on two sides of a person's face; as shown in the picture below: Lyme disease is the most widespread infectious source of diplegia facialis or facial diplegia, but it can be treated and the disability will recede.