The signs and symptoms of VSD vary and it depends mainly on the size of the VSD (hole). If the hole is small, child may be asymptomatic. Children or young adults with small VSD only show signs of a heart murmur (Ventricular Septal Defect murmur) that is detected by their family physician/pediatrician.

A medium or large sized VSD (hole) is likely to exhibit the following noticeable symptoms in children:

  • Rapid breathing/breathlessness
  • Pneumonia like situation
  • Poor weight gain/ failure to thrive
  • Poor feeding
  • Early tiredness and fatigue
  • Excessive sweating
  • Inability to engage in physical activities
  • An enlarged heart
  • A tint of blue on the lips, fingernails, and skin in late stages of large VSD (Eisenmenger VSD)

These symptoms indicate that the VSD will most likely not close by itself, and therefore, require early treatment (VSD treatment).

If left untreated, Ventricular Septal Defect may lead to further complications such as pulmonary hypertension, endocarditis, or Eisenmenger complex like situation.