A red spot in the white of your eye is most often a subconjunctival hemorrhage — a small broken blood vessel under the clear surface of the eye. It usually looks dramatic but is often harmless and clears on its own in about 1 to 3 weeks.

Common causes

  • Sneezing, coughing, vomiting, or straining
  • Rubbing the eye or minor eye irritation
  • Dry eyes, allergies, or a small scratch
  • Eye injury, infection, or contact lens irritation
  • Blood thinners, aspirin, high blood pressure, or diabetes-related issues in some cases

When it is usually not urgent

If the red spot is painless , your vision is normal, and there is no discharge or major irritation, it is often just a burst surface vessel and tends to fade without treatment.

A simple example: someone wakes up, notices a bright red patch on the white of one eye, but feels fine otherwise — that pattern fits a subconjunctival hemorrhage.

Get medical care sooner

Seek prompt care if you have:

  • Eye pain
  • Blurry vision or vision changes
  • A recent eye injury
  • Nausea or vomiting with a red eye
  • Repeated red spots, or one that does not improve over 2 to 3 weeks

What you can do now

  • Don’t rub the eye
  • Use lubricating artificial tears if it feels irritated
  • Avoid contact lenses until it settles if lenses seem related
  • Watch for pain, vision changes, or worsening redness

If the spot came after coughing, sneezing, or rubbing, it is especially likely to be a harmless burst vessel.