Congenital anomalies are malformations that are present at birth. Birth defects may include the following conditions that affect the baby in the uterus during development-

• Genetic abnormalities
• Growth restriction
• Early pregnancy
• Mechanical forces

The most common types of congential hand deformities are as follows

• Polydactyly (Extra fingers)
• Syndactyly (webbed fingers / two fingers joined together)
• Symbrachydactyly (small or missing fingers)
• Clubhand (A hand that turns inward, causing limited range of motion at the
  wrist)

Limb deficiencies can be –

• Longitudinal (specific part of a limb, such as a bone in the arm or leg is partially or completely missing)
• Transverse ( limb is completely missing after a certain point)

Treatment includes:

• Surgical procedures can be performed for child suffering from polydactyly and syndactyly.The procedure selected by the surgeon will depend on child’s
  specific condition and the type of surgery.
• Prosthetic devices for missing or hypoplastic limbs