Causes of persistent tearing in a new born

Persistent tearing in a newborn can be caused by several factors. Here are some possible causes:

  1. Congenital anomalies: Certain birth defects, such as a blocked tear duct or a malformed eyelid, can cause persistent tearing.
  2. Infection: Bacterial or viral infections, such as conjunctivitis (pink eye), can cause tearing and discharge in newborns.
  3. Meconium: Meconium, a thick, greenish-black substance that is present in a newborn's intestines, can cause tearing and irritation in the eyes.
  4. Dry eye: Newborns have a natural reflex to tear up in response to light, which can cause excessive tearing. However, if the tears are not properly drained, it can lead to dry eye and persistent tearing.
  5. Blocked tear duct: A blocked tear duct can cause tears to accumulate in the eye, leading to persistent tearing.
  6. Eyelid abnormalities: Abnormalities in the shape or position of the eyelids, such as epicanthus (a fold of skin that covers the inner corner of the eye), can cause tearing.
  7. Premature birth: Newborns who are born prematurely may be more prone to tearing due to their immature tear ducts and eyelids.
  8. Genetic predisposition: Some newborns may be more prone to tearing due to genetic factors, such as a family history of tearing or eye problems.
  9. Environmental factors: Exposure to irritants, such as smoke or chemicals, can cause tearing in newborns.
  10. Maternal factors: Maternal factors, such as a history of eye problems or allergies, can increase the risk of tearing in newborns.

It's essential to consult a pediatrician or an ophthalmologist if you notice persistent tearing in your newborn. They will perform a thorough examination and may recommend further testing or treatment to determine the underlying cause and develop an appropriate plan to manage the condition.