Ultrasound is a diagnostic imaging technique that uses ultrasound waves (high-frequency sound waves) to build and recreate images of the body's internal structures. Ultrasound is a method of diagnosing and treating diseases that is commonly used in medicine.

Currently, science has no evidence that ultrasound is harmful to the baby. The nature of ultrasound is sound waves with very high frequencies (beyond the threshold of hearing) so it is completely harmless.

During the 9th week of pregnancy ultrasound, the doctor will advise performing a transvaginal ultrasound to more clearly observe the internal reproductive organs, detecting diseases in the urinary tract that are difficult to see on abdominal ultrasound.

Ultrasound is a diagnostic imaging technique that uses ultrasound waves (high-frequency sound waves) to build and recreate images of the body's internal structures. Ultrasound is a method of diagnosing and treating diseases that is commonly used in medicine.

Ultrasound is a diagnostic imaging technique widely used in medicine. Nowadays, ultrasound machines are increasingly improved and more advanced, helping to improve patient safety and being a powerful assistant for doctors in diagnosis and treatment. So what is the principle of imaging in medical ultrasound?