jam
Tubako yuus a di kaaz a bout 22% a kiansa det.[1] Aneda 10% juu tu obisiti, puo dayat, lak a fizikal aktiviti ah jingkin alkowal.[1][4] Adaels fakta ingkluud soertn infekshan, expuoja tu ayanaizin redieshan ah invairamental paluutant.[5] Ina di divelopin wol nieli 20% a kiansa juu tu infekshan laka epataitis B, epataitis C ah yuuman papiluomavairos (HPV).[1] Demaya fakta hak, akliis paatli, bai chienjop di jiinzdem ina sel.[6] Tipikali nof jinetik chienj rikuaya bifuo kiansa kiah divelop.[6] Apraximetli 5–10% a kiansa juu tu jinetik difek inerit frah di poersn pierans.[7] Kiansa kiah ditek bai soertn sain ah simtom ar skriinin tes.[1] Ikiah den tipikali investigiet forda bai medikal imijin ah kanfoerm bai bayapsi.[8]
eng
Tobacco use is the cause of about 22% of cancer deaths.[1] Another 10% is due to obesity, poor diet, lack of physical activity and drinking alcohol.[1][4] Other factors include certain infections, exposure to ionizing radiation and environmental pollutants.[5] In the developing world nearly 20% of cancers are due to infections such as hepatitis B, hepatitis C and human papillomavirus (HPV).[1] These factors act, at least partly, by changing the genes of a cell.[6] Typically many genetic changes are required before cancer develops.[6] Approximately 5–10% of cancers are due to inherited genetic defects from a person's parents.[7] Cancer can be detected by certain signs and symptoms or screening tests.[1] It is then typically further investigated by medical imaging and confirmed by biopsy.[8]