Legal analysis: citizens who have paid mutual aid in blood, and whose family members have participated in voluntary blood donation within one year, can return the paid mutual aid. When returning, you should bring all relevant certificates: 1, proof of blood donation without compensation; 2, blood donors and blood donors' ID cards, household registration books and copies of the above four certificates; 3. Pay the receipt with the blood mutual fund; 4. If the registered permanent residence has moved out, please ask the local public security organ to issue a certificate to prove the family members' relationship. Free blood donation is a noble act of selfless dedication and saving lives, and it is the general direction of the development of blood cause in China. Blood donation is the embodiment of love and dedication, and its value can't be measured by money, helping patients to relieve their illness and save lives.

Legal basis: Article 17 of the People's Republic of China (PRC) Blood Donation Law, people's governments at all levels and the Red Cross Society shall reward units and individuals who actively participate in blood donation and have made remarkable achievements in blood donation.