Leech bites: massive bleeding, coagulation profile disorders, and severe anemia
Case report published in American Journal of Emergency Medicine (2008)
Abstract
Leeches have been in use for centuries, especially in plastic and reconstructive surgery wound and flap healing, in venous insufficiencies, and in the treatment of many disorders such as hemorrhoids and varicosity. With this study, we aimed to discuss coagulation disorder due to uncontrolled leech bites, consequent excessive skin hemorrhage, and anemia requiring blood transfusion. A 65-year-old male patient was referred to the emergency department because of excessive intractable bleeding that had occurred after leech bites. On physical examination, a total of 130 bites were detected on various regions of the body. In the laboratory findings of the patient, hemoglobin and hematocrit levels were extremely low, and prothrombin time, international normalized ratio, and partial thromboplastin time were markedly increased. The patient received a total of 8 units of fresh frozen plasma and 6 units of erythrocyte suspension. Bleeding stopped by decreasing after the transfusion of fresh frozen plasma. Although the complications due to leech injuries are rare, they may be an important cause of morbidity and mortality when an injury or prolonged bleeding in an internal region occurs. Prolonged skin hemorrhages rarely cause anemia, and deaths are caused by intractable hemorrhages. However, a coagulation disorder and consequent intractable hemorrhage have not been reported previously in the literature. In conclusion, it should be known that uncontrolled, blind, and excessive leech use causes severe hemorrhage and excessive blood loss, causing significant morbidity and mortality. Therefore, the awareness of either physicians or people using or recommending alternative medicine should be raised on this subject.
Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.
Resumen
65-year-old male with 130 leech bites developed coagulopathy with markedly elevated PT/INR/PTT, severe anemia, and required 8 units fresh frozen plasma and 6 units of erythrocyte suspension — illustrates morbidity of uncontrolled traditional leech application.
Por qué esto importa para la hirudoterapia
Este reporte de caso describe a un hombre de 65 años con 130 mordeduras de sanguijuela que presentó sangrado excesivo intratable, anemia grave (hemoglobina y hematocrito extremadamente bajos) y anomalías del perfil de coagulación (aumento marcado del tiempo de protrombina, INR y tiempo de tromboplastina parcial), requiriendo 8 unidades de plasma fresco congelado y 6 unidades de suspensión de eritrocitos, con cese del sangrado tras la transfusión de plasma. Los autores afirman que el trastorno de coagulación con la hemorragia intratable consecutiva a mordeduras de sanguijuela no se había reportado previamente en la literatura. El reporte es directamente relevante para el ámbito de ASH como una preocupación grave de seguridad, al ilustrar la potencial morbilidad de la aplicación excesiva e incontrolada de sanguijuelas. Salvedad: se trata de un reporte de caso único con un número extremo de mordeduras (130) derivado del uso incontrolado de medicina alternativa; las anomalías de la coagulación pueden reflejar una coagulopatía preexistente o inducida por la sanguijuela a partir de una exposición masiva a anticoagulantes, y no se aportan datos sistemáticos sobre las relaciones dosis-respuesta ni sobre la incidencia.
Citación
Leech bites: massive bleeding, coagulation profile disorders, and severe anemia.
Kose A et al. · American Journal of Emergency Medicine, 2008
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Añadido a la biblioteca ASH: May 27, 2026 · Última actualización del sitio: 18 de junio de 2026