A subconjunctival hemorrhage occurs when a tiny blood vessel breaks just underneath the conjunctiva. Sub means under, and hemorrhage means bleeding. The event can have various causes that are harmless and require no treatment and others that warrant a visit to the doctor. Physical damage to the surface of the eye often involves the conjunctiva. Causes include thermal or chemical burns and blunt or penetrating trauma. While the extent injury may be limited to the conjunctiva, subconjunctival hemorrhage may be a result of a more serious, underlying problem. Careful evaluation, initial management, and triage of conjunctival injuries are essential to promote healing.
A subconjunctival hemorrhage may look scary but is a common condition. There are more than two hundred thousand cases per year. Treatment can help but cannot cure it. It's easily identifiable and requires no lab tests or imaging. The whole white part of the eye may turn red, or just part of it. Blood in the eye can happen at all ages. Often the causes in younger people are different than those for older adults.
Receive updates on the latest news and alerts straight to your inbox.
This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional.