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By Mayo Clinic staffSigns and symptoms of serious heart defects often appear during the first few days, weeks and months of a child's life.
Signs and symptoms of a large ventricular septal defect in a baby may include:
- A bluish tint to the skin, lips and fingernails (cyanosis)
- Poor eating, failure to thrive
- Fast breathing or breathlessness
- Easy tiring
- Swelling of legs, feet or abdomen
- Rapid heart rate
Although these signs can be caused by other conditions, they may be due to a congenital heart defect.
You and your doctor may not notice signs of a ventricular septal defect at birth. If the defect is small, symptoms may not appear until later in childhood — if ever. Signs and symptoms vary depending on the size of the hole. Your doctor may first suspect a heart defect during a regular checkup while listening to your baby's heart with a stethoscope.
Sometimes a ventricular septal defect isn't detected until a person reaches adulthood and develops signs or symptoms of heart failure, such as shortness of breath.
When to see a doctor
Call your doctor if your baby or child:
- Tires easily when eating or playing
- Is not gaining weight
- Becomes breathless when eating or crying
- Has a bluish tint to his or her skin, especially around the fingernails and lips
- Breathes rapidly or is short of breath
Call your doctor if you develop:
- Shortness of breath when you exert yourself or when you lie down
- Rapid or irregular heartbeat
- Fatigue and weakness
- Swelling (edema) in your legs, ankles and feet
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