Leg pain causes often come from trauma. Falls, injuries, damage to bone, muscles, or joints, or anything that is hard on bone, muscles and joints can cause pain. Anything that causes inflammation, especially inflammation that affects a nerve, can increase pain.
Because many leg pain causes come from accidents and injuries, it is important to let injuries heal as best as the individual can let them. It takes time for some things to heal properly, but that time should be taken. If one does not allow something to heal properly, not only are they allowing there to be more pain, they are also more susceptible to further injury and will more likely reinjure the injury later.
Traumatic experiences and injuries will obviously hurt during the incident, but that pain doesn’t always have to last. If one lets an injury heal properly they reduce the chances of remaining pain. They may still experience pain on occasion, but it is less likely to be a lasting pain.