Poorly defined hepatic hemangioma is a common imaging description of hepatic hemangioma and does not indicate malignancy, other tests should be performed in time to determine whether it is a malignant disease such as hepatocellular carcinoma. Hepatic hemangioma is a benign disease and does not become malignant. During the imaging examination such as abdominal ultrasound, the border may be unclear due to the shape or structure of the hemangioma. If it is clearly recognized as hepatic hemangioma, conservative observation can be carried out when there is no clinical symptom; if compression symptoms appear, timely consultation is required. Hepatic hemangioma needs to be differentiated from hepatocellular carcinoma, which is a kind of tumor with high malignant degree, and may have unclear boundary due to its surface location and atypical lesion, etc. At this time, it is necessary to carry out MRI examination and pathological examination to make a clear diagnosis, and carry out appropriate treatments in a timely manner.