Hypoechoicity in ultrasound may be good or bad. For example, in gynecological ultrasound, uterine fibroids are often hypoechoic, most of which are benign, and a very small percentage of which are malignant. When doing ultrasound, different echogenic zones are formed in different tissues, and the common ones are hypoechoic zone, isoechoic zone, hypoechoic zone, and anechoic zone. The strength and height of the echoes are generally determined by the normal echoes of the organ, or by comparing the strength of the echoes of the lesion site with the echoes of the surrounding normal organs. When the ultrasound suggests that the tissue is hypoechoic, the relevant clinician should be asked to review the report in time and determine the benign or malignant nature of the tumor according to other auxiliary examinations, and should not make blind judgment on his own.