Paddle for Perthes Disease Awareness Day

United States, Canada, United Kingdom, Australia, New Zealand

About

Paddle for Perthes Disease Awareness Day, observed on July 31, shines a light on Legg-Calvé-Perthes disease, a rare childhood condition that affects the hip. It occurs when blood flow to the rounded head of the thighbone is temporarily reduced, which can lead to pain, stiffness, and difficulty walking. Greater awareness can help families recognize possible signs and seek medical guidance and support.

The day also celebrates the strength of children and families living with Perthes disease, while encouraging communities to learn, share, and show compassion. Whether through a paddling activity, a conversation, or a message of support, people can help spread understanding and remind those affected that they are not alone.

History

**Paddle for Perthes Disease Awareness Day**, observed annually on **July 31**, is dedicated to increasing public understanding of Legg-Calvé-Perthes disease, a rare childhood hip condition in which the blood supply to the head of the femur is temporarily disrupted. The resulting bone damage can cause pain, limping, stiffness, and reduced mobility. Because symptoms may initially resemble ordinary childhood injuries or growing pains, awareness is important for encouraging families and healthcare providers to seek appropriate evaluation.

The observance connects education with the image and activity of paddling. Canoeing, kayaking, and other forms of paddling represent movement, persistence, and community support—ideas that reflect the long treatment and rehabilitation journeys experienced by many children with Perthes disease. Public information about the day, including its listing by National Today, presents it as an opportunity to share information about the condition, support affected families, and recognize the challenges associated with diagnosis, treatment, and recovery.

Over time, Paddle for Perthes Disease Awareness Day has become part of a broader effort by patients, parents, advocates, and medical communities to make Perthes disease more visible. Awareness activities can include paddling events, educational campaigns, social-media outreach, fundraising, and the sharing of personal experiences. These efforts help counter the relative rarity of the disease, which can leave families searching for reliable information and specialized orthopedic care.

The day’s cultural significance lies in turning a recreational, community-centered activity into a symbol of advocacy. On **July 31**, supporters use paddling to promote solidarity with children living with Perthes disease and with those who have completed treatment. The observance also emphasizes that awareness is not limited to one event: better recognition of symptoms, stronger family support, and continued medical research are important throughout the year.

Timeline

1910
American orthopedic surgeon Arthur T. Legg published an account of the childhood hip disorder in "An Obscure Affection of the Hip Joint," one of the three independent 1910 descriptions that led to the name Legg-Calvé-Perthes disease.
1910
French surgeon Jacques Calvé independently described the characteristic childhood hip condition in 1910, contributing the "Calvé" component of the eponym Legg-Calvé-Perthes disease.
1910
German surgeon Georg Perthes independently reported the disorder in 1910; his work supplied the "Perthes" component of the disease’s standard name.

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