What is transient synovitis of the hip?
Transient synovitis of the hip, also called toxic synovitis, is an inflammation and swelling of the tissues around the hip joint. Usually only one hip is affected. This condition is called "transient" because it lasts only a short time. Transient synovitis of the hip is the most common cause of sudden hip pain in children.
Transient synovitis of the hip usually occurs in children between 3 and 10 years of age. Sometimes it occurs in children younger than 3 years of age. It is more common in boys than in girls.
Written by familydoctor.org editorial staff