Leg pain can have many causes. Some of the most common causes include excessive stress on the leg and injuries from a fall or other trauma, such as a sports-related injury. It can also be caused by health issues related to bones, soft tissues, joints, muscles, nerves and blood vessels.
The cause of the leg pain determines the appropriate treatment, and home treatment is often adequate. However, if the pain is persistent, severe and sudden or other symptoms are present alongside the pain, it may indicate a severe health issue that requires immediate medical attention.
The causes of leg pain can be vascular, musculoskeletal, neurological or a combination of all three. Vascular causes include peripheral artery disease, deep vein thrombosis, infections, cellulitis, varicose eczema and varicose veins. These conditions often result in the discoloration of the skin.
Musculoskeletal causes include crepitus and arthritis. Crepitus involves a cracking or popping sound in the knee. Arthritis is a degenerative disease of the joints, such as the ankle, knee or hip. A fall that strains a ligament, tendon or muscle may also cause musculoskeletal leg pain. Neurological causes include sciatic nerve pain, nerve damage and restless leg syndrome.