National AFM Day, also known as National Acute Flaccid Myelitis Day, is observed worldwide every September 23. It was created to educate the public about acute flaccid myelitis (AFM), a rare neurological condition that affects the spinal cord and can lead to rapid limb weakness and paralysis. The day was established by AFM advocate LaMay Ann Axton to highlight the importance of research on this condition, which has been tracked since its recognition in 2014. Typical observances include educating oneself about AFM, donating to organizations that fund AFM research or support patients and caregivers, and spreading awareness on social media using the hashtag #NationalAFMDay. AFM primarily affects young children and often follows a mild viral infection, with symptoms that can include decreased reflexes, gait abnormalities, and difficulty breathing. As there is currently no cure, treatment focuses on supportive care, including physical or occupational therapy.