The breakdown of red blood cells sooner than is typical.

When to seek immediate medical care

See a healthcare professional right away for:

  • Yellowing of the skin and whites of the eyes. Skin changes might be harder to see on Black or brown skin.
  • Shortness of breath.
  • Chest pain.

When to make a doctor's appointment

Make an appointment to see a healthcare professional for:

  • Weakness or more tiredness than usual.
  • Headaches.
  • Problems with thinking or focusing.
  • Lightheadedness when standing.
  • Pale skin.