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Merck Manual LogoMERCK MANUALConsumer Version
Blood Clotting Process
  • How Blood Clots
    • Blood vessel factors
    • Platelet factors
    • Blood clotting factors
    • Stopping clotting
    • Medications and blood clots
  • Bruising and Bleeding
    • Causes
      • Senile purpura and purpura simplex
      • Common causes
      • Less common causes
    • Evaluation
      • Warning signs
      • When to see a doctor
      • What the doctor does
      • Testing
    • Treatment
    • Essentials for Older Adults
    • Key Points
MSD
MSD

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