Multiple arterial phase transient enhancement foci in the liver can be considered as benign disease hepatic hemangioma or caused by malignant disease hepatocellular carcinoma, etc., and it is necessary to improve the relevant examination and make a clear diagnosis by seeking medical treatment in time. 1. Hepatic hemangioma: during ct-enhanced examination of hepatic hemangioma, as the hemangioma is arterial blood supply, there will be obvious enhancement in arterial phase, and the center of the lesion will be strengthened with the passage of time, resulting in the occurrence of multiple transient enhancement foci. 2. Hepatocellular carcinoma: Hepatocellular carcinoma belongs to malignant tumors, with uneven internal distribution and scattered foci, but the foci of hepatocellular carcinoma have rich blood supply, which will be obviously strengthened in arterial phase, and will fade out rapidly in portal and delayed phases, which will be manifested as fast in and fast out. Imaging examination can play a certain reference role in the diagnosis of the disease, meanwhile, patients need to improve other examinations under the guidance of doctors, so as to make a clear diagnosis and actively treat the disease.