What are the main causes of subconjunctival hemorrhage?

Subconjunctival hemorrhage is considered to be caused by factors such as eye trauma, conjunctivitis and coagulation dysfunction.

1. Eye trauma

patients suffer from impact injury, crush injury, crushing injury, etc., which can lead to subconjunctival hemorrhage due to external force damage to eye tissue.

2. Conjunctivitis

patients suffer conjunctivitis due to infection with pathogens and contact with allergens, which can cause subconjunctival hemorrhage due to inflammation stimulating local tissues.

3. Coagulation dysfunction

Genetic factors and lack of coagulation factors lead to coagulation dysfunction, which is easy to cause subconjunctival microvessels to rupture and cause subconjunctival hemorrhage.