Find out about Activated P13K Delta Syndrome
Learn More

APDS is an inherited genetic condition. Symptoms of APDS can vary, even within families carrying the same genetic condition.

Take action for your health

Getting an accurate diagnosis of APDS is the first step in the journey ahead. Some people with APDS get diagnosed in their early years of life as infants or children, while others can remain undiagnosed or misdiagnosed for years. If you think you may have APDS, particularly if you suffer from two or more of the symptoms outlined on the About APDS page, talk with your doctor about getting a genetic test.

Diagnosing APDS


A blood test can identify abnormal changes
in B and T cells. This combined with other lab
abnormalities and multiple symptoms,
should raise suspicion and be followed up
with a genetic test to diagnose APDS.

Genetic Testing is the only
way to diagnose APDS

Just test for APDS

Speak to your doctor about getting a genetic test. Click here for more information

Speak to a genetic counsellor

Steps to Diagnose APDS:

Diagnosing APDS Diagram

Talk with your Doctor

APDS is rare and not all doctors will have cared
for a patient with this condition. Download our two page brochure – All about APDS and share with your Doctor. 

It includes the signs and symptoms, how to test
for APDS and how to manage and treat the condition.

Personal Perspective

Jeff talks talks about his experience of caring for someone with APDS

Diagnostician Perspective

Dr Hartog talks about diagnosing APDS

Personal Perspective

Brenda talks about living
with APDS

Learn more about the APDS clinical program

Access more information about APDS on our resources page

Stay informed: Sign up for updates about APDS