Symptoms may start as soon as a baby is born or may not appear until later in life. They can include:
- Cyanosis (blueish skin, lips or nails).
- Excessive sleepiness.
- Fast breathing or trouble breathing.
- Fatigue (extreme tiredness).
- Getting unusually tired or out of breath during exercise.
- Heart murmur (a swishing sound made by the heart that may indicate abnormal blood flow).
- Poor blood circulation.
- Weak pulse or pounding heartbeat.
The signs and symptoms vary widely, depending on:
- The number of heart defects (a person can be born with more than one defect).
- The severity of the condition.
- Type of defect.