Study Overview: This study, called ATHN Transcends, is investigating blood and bleeding disorders. A disorder is when something in the body doesn't work right. This study focuses on non-neoplastic hematologic (blood) disorders, which means they are not cancer-related. It aims to find out how safe and effective current treatments are for people with these disorders.

Key Details: Participants will be followed for at least 15 years in the study. The study is observational, meaning researchers will watch and collect information without changing participants' treatments. There are different groups, called cohorts, based on specific disorders like hemophilia (a bleeding disorder) or platelet disorders.

• **Study Length:** Minimum of 15 years.
• **Participation:** Observational, no change in treatment needed.
• **Eligibility:** People of any age with certain blood disorders can participate.

Why Participate? Joining this study can help doctors understand these conditions better and improve future treatments. It's a chance to contribute to important research that could benefit you and others with similar health issues in the future.