The presence of strong echoes under ultrasound is one of the most common terms used in ultrasound examinations. Generally, when ultrasound velocity encounters dense tissue or certain lesions, the acoustic impedance difference increases, resulting in local echogenic enhancement, and there are slightly strong echoes and strong echoes. Slightly strong echogenicity is usually seen in certain occupying lesions, such as various cancerous tumors, leiomyomas and hemangiomas, while strong echogenicity has a more dense internal structure and a more pronounced acoustic impedance difference, which causes strong reflection.