Mild cases of ascariasis usually don't cause complications. If you have a heavy infestation, potentially dangerous complications may include:

  • Nutritional deficiencies. Children with ascariasis are especially at risk of nutritional deficiencies. Loss of appetite and insufficient absorption of digested foods can occur.  
  • Intestinal blockage and perforation. In heavy ascariasis infestation, a mass of worms can block a portion of your intestine, causing severe abdominal cramping and vomiting. The blockage can even perforate the intestinal wall or appendix, causing internal bleeding (hemorrhage ) or appendicitis.
  • Duct blockages. In some cases, worms may block the narrow ducts of your liver or pancreas, causing severe pain.
May. 25, 2012