Slightly hypoechoic area in the liver with a diameter of 29mm may be caused by intrahepatic calcification foci and intrahepatic hemangioma, which need to be analyzed by specific causes. 1. Intrahepatic calcified foci: previous liver diseases such as hepatitis, liver abscess, etc. cause damage to liver cells, and scarring and calcified foci are produced when the liver is repaired, which will show a slightly hyperechoic area on ultrasound. 2. Intrahepatic hemangioma: It is a structure composed of a large number of arteriovenous malformations in the liver, which belongs to benign tumors of the liver, and can also show a hyperechoic area on ultrasound examination. There are many other reasons leading to this kind of test result, you should go to the hospital in time, improve the relevant examination to clarify the cause of the disease, and standardize the treatment under the guidance of the doctor.