1. Continue to use in the army: He is still in active service, so he can continue to use the fitness card in the army to maintain his health and physical fitness.

2. Transfer to other soldiers: transfer the fitness card to other soldiers, or donate the card to relevant military departments or military families.

3. Apply for card withdrawal: Apply for card withdrawal and return a certain balance. You can consult the local military affairs department or fitness card service organization for specific procedures.

4. Don't use the expired card: None of the above methods is feasible. You can save your fitness card until it expires.