Conditions & Treatments

Imperforate Anus

An imperforate anus is a congenital defect in which the opening to the anus is missing or blocked. It is caused by abnormal development of the fetus and can occur with other birth defects. 


  • Swollen belly
  • Baby does not pass stool within 24 – 48 hours after birth 
  • Anal opening is near the vaginal opening in girls 
  • Missing or moved opening to the anus 
  • Stool is passed through the vagina, base of the penis, scrotum or urethra 


  • Surgery is needed to repair the defect
  • Usually a temporary colostomy is needed
  • Patient need an evaluation to look for other associated abnormalities such as renal, cardiac, and spine anomalies.
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
Willis Knighton Health