From our partner site on chronic pain, ChronicPainConnection.com.
Osgood-Schlatter disease is a painful swelling of the bump on the front of the upper tibia (lower leg bone) in an area called the anterior tibial tubercle.
Causes, incidence, and risk factors:
This disease is probably caused by microtrauma (small, usually unnoticed injuries caused by repetitive overuse) that occurs before the complete maturity of the anterior tibial tubercle attachment.
The disorder is typified by a painful swelling just below the knee on the front (anterior) surface of the lower leg bone. The area is tender to pressure, and swelling ranges from minimal to very severe. Running, jumping, and climbing stairs cause discomfort. Symptoms occur on one or both legs. The disorder is seen most often in active, athletic adolescents, with boys more frequently affected than girls.