Coagulopathies, also known as coagulopathies, are a series of bleeding symptoms that occur in patients with coagulation disorders of the body due to various causes. There are several coagulopathies, including hemophilia A, hemophilia B, and vascular hemophilia. These disorders are generally hereditary, and the patient has a tendency to bleed since childhood, manifesting itself as a bleeding disorder after trauma, sometimes with subcutaneous hematomas in the muscles, and also with hematomas in the joints, which can be followed by joint deformities after the hematomas have been absorbed. Also, if vitamin K deficiency or severe liver disease causes coagulation disorders, bleeding tendencies may occur. In particular, vitamin K deficiency can cause disorders of the endogenous coagulation pathway as well as the exogenous coagulation pathway in the body, and patients may experience nasal bleeding and urinary bleeding. Also, coagulation routine tests PT and APTT are significantly prolonged and are usually treated well with plasma supplementation or vitamin K supplementation.