The shortest time for aflatoxin to cause cancer cannot be clarified, mainly related to the intake, the specific time varies from person to person and cannot be generalized. Aflatoxin is a highly toxic substance with strong hepatotoxicity, which can induce liver cancer and other changes, but the minimum time of carcinogenesis is not clear. Occasional consumption of aflatoxin-containing foods will not cause significant liver damage or induce liver cancer due to the small amount. However, if foods containing aflatoxin are consumed repeatedly, liver cancer may be induced. This is usually a chronic poisoning, and the exact duration of poisoning varies from person to person. In addition, if a large amount of aflatoxin is applied at one time, it may lead to significant liver damage and, in severe cases, liver necrosis. Therefore, patients are advised to eat more fresh fruits and vegetables in their daily life, avoid eating moldy and spoiled food, and try to eat less spicy and fried food.