Leg pain can occur in conjunction with pain from other areas. This referred pain originates in one area of the body but is perceived in another area. For example, many problems radiate from the hip to cause leg pain. A person who experiences leg pain may also experience:

• Back pain. Lower back problems (e.g., herniated disc, degenerative disc disease) frequently cause pain that radiates into the legs. Poor spine alignment may cause hip or sacroiliac joint pain that may extend into the legs.

• Knee pain. Numerous knee problems can cause pain throughout the leg.
  
  
• Foot pain. Problems related to flat feet or overpronated feet (feet that roll outward) affect walking or gait and may also cause leg pain. In addition, pain in the right foot, for example, may cause a person to favor the left foot, resulting in excess strain on one leg. Pain may also develop from the intrinsic muscles and bones of the feet.
  
  
• Pelvic pain. Muscle spasms in the pelvic floor, for example, may radiate to the hips and thighs.