CHD awareness refers to the effort to educate the public about congenital heart disease, the most common type of birth defect. About 40,000 babies are born with a heart defect each year in the United States alone, roughly 1 in every 100 births. Despite how common it is, many people know surprisingly little about CHD, which is why dedicated awareness campaigns push for better detection, more research funding, and stronger support for the growing population of children and adults living with these conditions.
What Congenital Heart Disease Actually Is
Congenital heart disease is a structural problem with the heart that forms before birth. It can involve holes between heart chambers, narrowed or blocked blood vessels, valves that don’t open or close properly, or entire sections of the heart that didn’t develop fully. Some defects are mild and never need treatment. Others are life-threatening within hours of delivery.
The most serious forms fall under the label “critical congenital heart disease,” or CCHD. Babies born with critical defects typically need surgery soon after birth. These include conditions where blood flow to the lungs or body is severely restricted, or where the heart’s chambers or major vessels are structured in a way that can’t sustain life without intervention. About 25% of babies born with any type of heart defect will need invasive treatment within their first year.
Why Awareness Campaigns Exist
CHD Awareness Week takes place every February 7 through 14, and the broader month of February serves as American Heart Month. These campaigns exist for a few overlapping reasons.
First, many parents have never heard of CHD before their child is diagnosed. Awareness efforts help expectant parents understand that heart defects are common and that prenatal screening can catch most of them. Second, funding for CHD research has historically been modest relative to how many people the condition affects. Between 2005 and 2015, the National Institutes of Health funded CHD research at roughly $58 to $116 million per year. For a condition that affects 1 in 100 births, advocates argue that figure should be higher. Third, there’s a massive gap in care for adults who were born with heart defects, and most people don’t even realize this population exists.
Signs Parents Should Recognize
Serious heart defects are usually caught soon after birth or within the first few months of life, but knowing the warning signs matters. The most recognizable symptom is cyanosis, a bluish or grayish tint to the lips, tongue, or fingernails. Depending on skin tone, this color change can be more or less obvious.
Other signs include rapid breathing or gasping breaths, swelling in the legs, belly, or around the eyes, and shortness of breath during feedings. That last one is particularly telling: babies with undetected heart defects often struggle to eat, tire quickly while feeding, and gain weight poorly. If a newborn consistently has trouble finishing a bottle or seems to be working hard to breathe while eating, that pattern alone can point toward an underlying heart problem.
How Heart Defects Are Detected
Detection happens at two key stages: before birth and immediately after.
During pregnancy, a routine second-trimester ultrasound catches the vast majority of heart defects. Recent research shows that when this ultrasound comes back normal, the chance of missing a critical heart defect is less than 0.5%. For non-critical defects, the miss rate is slightly higher but still under 3%. If there’s reason for concern, such as a family history of CHD or an abnormal finding on the routine scan, a fetal echocardiogram (a specialized ultrasound focused on the baby’s heart) can provide a more detailed look.
After birth, hospitals in all 50 states now screen newborns using pulse oximetry, a painless clip placed on the baby’s hand or foot that measures oxygen levels in the blood. Low oxygen can signal that blood isn’t flowing through the heart and lungs correctly. This simple test catches critical defects that might otherwise go unnoticed until the baby becomes seriously ill.
The Growing Adult CHD Population
One of the most important and least understood aspects of CHD awareness is what happens after childhood. Decades of surgical advances mean that the vast majority of babies born with heart defects now survive into adulthood. As of 2024, an estimated 1.69 million adults in the United States are living with congenital heart disease.
That’s a population roughly the size of Philadelphia, and it’s growing every year. Yet only about 10% of these adults receive care at specialized adult congenital heart disease centers. The rest are either seen by general cardiologists who may not have training in congenital conditions, or they’ve fallen out of follow-up care entirely. Many adults with CHD were told as children that their surgery “fixed” the problem, only to develop complications like heart rhythm disorders, valve deterioration, or heart failure in their 30s and 40s. Awareness campaigns increasingly focus on this gap, urging adults who were born with heart defects to seek out specialists trained in their specific anatomy.
Long-Term Health Beyond the Heart
CHD awareness also means understanding that heart defects affect more than just the heart. Children with CHD face significantly higher rates of neurodevelopmental challenges compared to their peers. National survey data shows that children with congenital heart disease are roughly five times more likely to be diagnosed with autism spectrum disorder, nearly twice as likely to have ADHD, and about nine times more likely to have an intellectual disability.
Learning disabilities are nearly three times as common in children with CHD, and about one in five will see a physical, speech, or occupational therapist in any given year, compared to about one in sixteen children without a heart defect. These challenges likely stem from a combination of factors: reduced oxygen delivery to the developing brain, the effects of open-heart surgery in infancy, and extended hospital stays during critical periods of early development. Awareness of these risks helps families and schools plan appropriate support early, rather than waiting for a child to struggle.
What CHD Awareness Looks Like in Practice
At the individual level, awareness means knowing the signs of a heart defect, understanding that a “repaired” heart still needs lifelong monitoring, and recognizing that CHD isn’t just a childhood condition. At the community level, it means supporting organizations that fund research, advocate for universal newborn screening, and connect families with resources. Parents of children with CHD, along with adults living with the condition themselves, often share their stories during Awareness Week to put a human face on the statistics.
At the policy level, CHD awareness efforts have already driven real change. Universal pulse oximetry screening in newborn nurseries became standard across the U.S. largely because of parent advocacy. Continued pressure has pushed for better tracking of CHD outcomes, expanded access to specialized adult care, and increased research funding. The core message of every awareness campaign is straightforward: congenital heart disease is common, it’s lifelong, and it deserves attention proportional to the number of lives it touches.