Tarlov Cyst Disease Awareness Day is observed on May 16 to promote, advocate, educate, and validate individuals living with Tarlov cyst disease. Founded by Katie Maskey, the day aims to improve awareness and understanding of this health issue, which can lead to symptoms such as pain, weakness, and numbness when the cysts on the spinal cord become large enough. The day is recognized in over 20 U.S. states and five Canadian provinces. Typical actions include advocating for awareness in local communities, sharing personal experiences on social media, and connecting with others affected by the disease through support groups. Participants are encouraged to research the condition and disseminate information to help others understand Tarlov cyst disease better.