Viral infection of the voicebox (larynx) and vocal cords.

Injuries to the leg (hip to foot). Injuries to a bone, muscle, joint or ligament. Muscle pain caused by too much exercise or work is covered in Leg Pain. (This is called overuse.)

Leg muscle cramps from sports or hard work (muscle overuse). The pain is not caused by an injury. Also called muscle spasms or heat cramps.

Leg muscle pain from hard work or sports (muscle overuse). Pain is not caused by an injury. Also called muscle overuse syndrome.