The son of Sawaeng Sukthuen said his father has been admitted to Phichit Hospital for nine days and has so far received one bag of O-negative blood.
The blood is a rare type in Thailand, available in just 1 in 1,000 Thais.
Sawaeng now has only 18 per cent of blood.
Interested donors please contact 0819111705. Donations can be made at Red Cross offices in any province.
The Nation