why sore leg muscles
Muscle Strain or Fatigue. Muscle fatigue or strain is the most common cause of leg soreness. Usually, a muscle strain happens from increased activity and causes a minimal amount of soreness. The soreness is easily relieved by rest and cold or warm compresses.
By Mayo Clinic Staff. Most leg pain results from wear and tear, overuse, or injuries in joints or bones or in muscles, ligaments, tendons or other soft tissues. Some types of leg pain can be traced to problems in your lower spine. Leg pain can also be caused by blood clots, varicose veins or poor circulation.