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  1. Coagulation - Wikipedia

    Coagulation, also known as clotting, is the process by which blood changes from a liquid to a gel, forming a blood clot. It results in hemostasis, the cessation of blood loss from a damaged …

  2. Blood Clots - Hematology.org

    Blood clotting, or coagulation, is an important process that prevents excessive bleeding when a blood vessel is injured. Platelets (a type of blood cell) and proteins in your plasma (the liquid …

  3. How Blood Clots - Blood Disorders - Merck Manual Consumer Version

    The body's ability to form blood clots is vital to hemostasis, but too much clotting increases the risk of a heart attack, stroke, or pulmonary embolism. Many medications, either intentionally or …

  4. Blood Clotting Disorders: Types, Signs and Treatment

    Jul 1, 2022 · A blood clotting disorder is an inherited or acquired issue that makes you tend to form blood clots too easily. Blood clots can cause a heart attack or stroke.

  5. Blood Clots – Symptoms and Causes | Penn Medicine

    A type of blood cell called platelets and proteins called clotting factors work together to form clots and stop bleeding. Normally, blood clots safely dissolve, or break up, when they’re no longer …

  6. Blood Clotting Disorders - How Does Blood Clot? | NHLBI, NIH

    Mar 24, 2022 · An imbalance of certain factors in the blood can cause clotting in the absence of an injury. Learn more about these factors and how the blood clots normally and how blood …

  7. Blood Clots - How They Form and Common Causes - WebMD

    Nov 19, 2023 · Proteins in your blood called clotting factors signal each other to cause a rapid chain reaction. It ends with a dissolved substance in your blood turning into long strands of fibrin.

  8. Blood clots - Mayo Clinic

    Mar 20, 2025 · Blood clots are gel-like clumps of blood. When they form in response to a cut or other injury, they stop the bleeding by plugging the injured blood vessel. These blood clots …

  9. Blood Clot: Symptoms, Treatment, Prevention, and More

    Dec 11, 2025 · Blood clots can be a normal part of healing, but they also can block blood flow to the heart, lungs, and brain. Symptoms such as chest pain or difficulty breathing will depend on …

  10. Coagulation | Definition, Factors, & Facts | Britannica

    Nov 14, 2025 · coagulation, in physiology, the process by which a blood clot is formed. The formation of a clot is often referred to as secondary hemostasis, because it forms the second …