Whether an ultrasound is hyperechoic or hypoechoic does not mean that it is good or bad, which is also known as benign or malignant. For example, hemangiomas in the liver are generally hyperechoic, which is a benign tumor, and parathyroid glands are also hyperechoic, which is normal. For example, many benign nodules on the breast are hypoechoic, and uterine fibroids can also be hypoechoic, which are all benign tumors. It depends on other factors, such as the regularity of the nodule, the clarity of the boundary, the internal blood flow, and whether the blood flow is arterial or venous, etc. It is impossible to make a diagnosis simply by the high or low echogenicity of the nodule.