The body will replace the fluids of the donated blood in just 24 hours. The red blood cells will be replaced in about 6 to 8 weeks. After 3 months, a person can choose to donate again.
We ask you to wait until a minimum of 3 months after oral treatment for gastric or duodenal ulcers, and all symptoms have settled.
If you have had a partial gastrectomy for surgery, we ask you to wait for 6 months before donating.
If you have had a total gastrectomy you will not be able to donate, as your ability to absorb iron is permanently reduced.
You will not be able to donate blood if you have ulcerative colitis.
Login using your online or NZ Blood Service Donor App login details.
If you do not have a login please Register Now, using the button below.
Once registered, your login details will be the same for both the website and the NZ Blood Service Donor app.