This study looks at whether adding simple family history questions to a standard bleeding questionnaire can better identify children who truly have mild bleeding disorders. Because young children often haven't had major bleeding challenges yet, their own symptoms may not tell the full story, so family history could provide important extra information. By reviewing several years of clinic data, the researchers aim to see if this combined approach helps doctors decide more accurately who needs further testing, especially in children under 8 years old.

This study focuses on improving how doctors evaluate children who may have a mild bleeding disorder, such as von Willebrand disease or platelet function disorders. Doctors already use a standardized bleeding questionnaire to record a child's bleeding symptoms, but this can be difficult in younger children who often haven't had major bleeding challenges like surgery or dental work. To address this, the researchers added a small number of family history questions to the existing tool to see if knowing about bleeding problems in relatives helps predict whether a child truly has a bleeding disorder.

The study reviews several years of existing medical records from children and young adults seen in a pediatric hematology clinic. By comparing the standard questionnaire with the expanded version that includes family history, the researchers want to see which approach more accurately identifies patients who go on to receive a confirmed diagnosis. The goal is to help clinicians decide more confidently who needs further testing and who does not, reducing unnecessary and costly lab work while improving diagnosis, especially for children under 8 years old, where bleeding symptoms alone may be misleading.

Inclusion Criteria:

• All individuals seen at CCHMC CBDI clinic for mild bleeding disorder with completed BAT+ at their new patient visit to Cincinnati Children's Hospital Medical Center (Base Campus or Liberty Campus) since 2019.
• If patient has multiple BAT+ scores will utilize the BAT+ score done at the new patient Hematology clinic CCHMC

Exclusion Criteria:

• Lack of BAT+ on new patient visit in outpatient setting to rule out mild

- All individuals seen at CCHMC CBDI clinic for mild bleeding disorder with completed BAT+ at their new patient visit to Cincinnati Children's Hospital Medical Center (Base Campus or Liberty Campus) since 2019.