Alamomin ciwon daji Ya kasan ce kuma sune asalin damar ilimin halitta guda shida da aka samu a yayin haɓaka ciwace-ciwacen ɗan adam kuma tun daga lokacin an ƙaru zuwa ƙarfin takwas da damar iya ba da damar guda biyu. Douglas Hanahan da Robert Weinberg ne suka kirkiro ra'ayin a cikin takardar su The Hallmarks of Cancer da aka buga Janairu 2000 a cikin Cell . Waɗannan alamomin sun zama ƙa'idar tsari don daidaitawa da rikitarwar cututtukan neoplastic. Sun haɗa da ci gaba da siginar yaɗuwa, guje wa masu hana haɓaka girma, tsayayya da mutuwar tantanin halitta, ba da damar dawwama, haifar da angiogenesis, da kunna mamayewa da metastasis. Ƙarƙashin waɗannan alamomi sune rashin zaman lafiya na kwayoyin halitta, wanda ke haifar da bambancin kwayoyin halitta wanda ke hanzarta samun su, da kumburi, wanda ke haɓaka ayyuka masu yawa. Bugu da ƙari ga ƙwayoyin cutar kansa, ciwace-ciwacen daji suna nuna wani nau'i na rikitarwa: sun haɗa da al'umma na daukar aiki, masu yiwuwa kwayoyin halitta na yau da kullum waɗanda ke ba da gudummawa ga siyan halaye masu mahimmanci ta hanyar ƙirƙirar " ƙananan ƙwayar cuta ." Amincewa da yawaitar amfani da waɗannan ra'ayoyin zai ƙara yin tasiri ga haɓaka sabbin hanyoyin magance cutar kansar ɗan adam.