Subconjunctival Hemorrhage Causes

Most subconjunctival hemorrhages are spontaneous without an obvious cause for this bleeding from the conjunctival vessels. Often, a person may discover a subconjunctival hemorrhage on awakening and looking in the mirror. Most spontaneous subconjunctival hemorrhages are first noticed by another person seeing a red spot on your eye.

The following can occasionally result in a spontaneous subconjunctival hemorrhage:

• sneezing,



• coughing,



• straining/vomiting,



• eye rubbing,



• trauma (injury),



• high blood pressure,



• bleeding disorder, or



• a medical disorder causing bleeding or inhibiting normal clotting.

Subconjunctival hemorrhage can also be non-spontaneous and result from a severe eye infection, trauma to the head or eye, or after eye or eyelid surgery.