Singapore needs more blood donors, says the Singapore Red Cross.
More than 350 units of blood are required by all hospitals here every day. This means at least 450 people must donate daily.
Last year, 67,310 residents made 104,895 donations.
A Health Sciences Authority spokesman said that blood goes to those having medical emergencies, such as accident victims. It also goes to patients undergoing operations, cancer patients, and those with blood disorders like leukaemia.
There is a limit to the number of times a person can donate blood - three to four times a year.
People can donate blood at the Bloodbank@HSA, Bloodbank@Woodlands or at a community bloodmobile.
To make an online appointment, go to www.hsa.gov.sg/donorcare.
To see blood stock levels and locations of bloodmobiles, see http://www.donorweb.org