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Causes of increased and decreased bleeding time

Medical expert of the article

Hematologist, oncohematologist
, medical expert
Last reviewed: 04.07.2025

The reference values for the duration of bleeding according to Duke are 2-3 minutes. Bleeding time characterizes the elasticity of blood vessels and their ability to contract during trauma, as well as the state of the platelet system (ability to adhesion and aggregation). Prolongation of bleeding time is of practical importance. It reflects a violation of primary hemostasis due to thrombocytopenia, thrombocytopathy, vascular wall damage, or a combination of these factors.

Diseases and conditions that may alter bleeding time

Increased clotting time Shortening of clotting time

Thrombopenic purpura

Athrombopenic purpura

Sorrow

Phosphorus poisoning

Hemorrhagic diathesis

Leukemia

Splenomegaly cirrhosis of the liver

Long-term use of certain medications (acetylsalicylic acid)

Bleeding with hypofibrinogenemia

Vascular defects with underdevelopment of precapillary contraction (microangiopathy)

DIC syndrome

More often it is a consequence of a technical error during the test or indicates an increased spastic capacity of the capillaries

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