Risk factorsBy Mayo Clinic staff
The main risk factors for Osgood-Schlatter disease are age, sex and participation in sports.
Osgood-Schlatter disease occurs during puberty's growth spurts. Age ranges differ by sex because girls experience puberty earlier than do boys. Osgood-Schlatter disease typically occurs in boys ages 13 to 14 and girls ages 11 to 12.
Osgood-Schlatter disease is more common in boys, but the gender gap is narrowing as more girls become involved with sports.
Osgood-Schlatter disease affects about 20 percent of the adolescents who participate in sports, as compared with only 5 percent of adolescents who don't participate in sports. The condition happens most often with sports that involve a lot of running, jumping and swift changes in direction. Examples include:
- Figure skating
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