Critical blood emergency may leave patients without blood. Please donate today!


Donor Registry

Help unlock a cure for cancers and other diseases.  

We’re working with researchers to support the development of new medical therapies for patients fighting cancer and other conditions. 

You can help by signing up as a donor on our research study database, BioLinked.

What is BioLinked?

Why join?

How To join?

  1. Register | Create your account by clicking “register”
  2. Questionnaire | Fill out the form to the best of your knowledge. It does not need to be completed to be registered.

The information you provide on the questionnaire will be used only to qualify you for future studies

If you qualify for a study, you will be contacted by our staff, who will explain what is needed. The choice to move forward with participation is completely yours. Unless you agree, researchers will never know your identity.


If you need additional help registering or have more questions about participating in research, please email research@southtexasblood.org.



Share Your Story

Was your life saved by the generous gift of blood, tissue or cord blood? Or are you a donor who’d like to share why you chose to save a life?

About Us

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For more than 45 years, the nonprofit South Texas Blood & Tissue Center has focused on a critical purpose: to save and improve lives.

Inspired by a group of physicians, our organization was formed to provide blood to the South Texas region – ensuring a safe and adequate blood supply through proper testing, storage and distribution to hospitals. This essential service allows front-line workers to focus on the direct care of patients, with confidence that this lifesaving resource will be there when it’s needed most.

But we didn’t stop there. Over the years, we’ve evolved as the needs of our patients and hospitals have changed, driven to save lives in as many ways as possible.

We couldn’t do this without donors like you. We understand that the gift of donation is a personal, powerful choice that has the potential to touch a life. Today, we offer many ways to make a difference that include:

Our team has also expanded its programs, partnering with leaders within the healthcare industry to develop a wide range of therapies. We’ve recently developed programs to collect and distribute COVID-19 convalescent plasma, as well as improve trauma care.