There are many types of diseases that can be detected by ultrasound, as follows: 1. Transcranial Doppler ultrasound: Transcranial Doppler ultrasound can determine whether the blood supply to the brain is normal. 2. Neck ultrasound: Neck ultrasound can determine whether the blood vessels in the neck are normal and whether there are problems with the thyroid gland and soft tissues in the neck. 3. Chest ultrasound: Chest ultrasound can determine whether the patient has a pleural effusion or some problems with the chest wall. 4. 4.Heart ultrasound: Heart ultrasound can determine whether the size, structure, shape and function of the heart are normal. 5.Abdominal ultrasound: Abdominal ultrasound can determine whether the abdominal organs have occupying lesions or congenital developmental abnormalities. 6.Gynecological ultrasound: Gynecological ultrasound can determine whether the patient has some gynecological 7.Other: Ultrasound examination of blood vessels can also be performed to determine whether there are stenosis, plaque and abnormal development of blood vessels.