1. Te roa: ka kitea i roto i te hemophilia A, te hemophilia B, te mate ate, te mate whakahoromata intestinal, te anticoagulants waha, te diffuse intravascular coagulation, te hemophilia ngawari;FXI, FXII ngoikore;Ko nga matū anticoagulant toto (te aukati tauwehe coagulation, lupus anticoagulants, warfarin, heparin ranei) kua piki ake;te nui o te toto rongoa i whakahekehia.
2. Whakapoto: Ka kitea i roto i te ahua hypercoagulable, mate thromboembolic, etc.
Awhe tohutoro o te uara noa
Ko te uara tohutoro noa o te wa thromboplastin wahanga whakahohe (APTT): 27-45 hēkona.