Scott was chosen in the sixth round and with the 199th overall pick of the 2014 NFL Draft, signing a rookie contract with the team yesterday.
However, a physical examination has since revealed the condition, and the Seahawks vowed to help the former Marshall star plan out his next move having seen his aspirations of playing in the NFL seemingly ended.
"After undergoing an extensive physical with our medical staff, Garrett's examination revealed a rare heart condition that will prevent him from any on-field participation in the near future," read a statement from Seahawks general manager John Schneider.
"We think highly of Garrett as a person and as a football player. The team is committed to supporting Garrett in the months to come and will continue to help him determine his next steps."
Garrett played in 41 college games overall and was voted to the All-Conference USA second team following his senior season.