In some cases, it is better to study, or rather practice, ultrasound diagnostics before you first learn about the pathology itself. This will make it easier in the future to diagnose an existing pathology, and to suspect an incipient disease before it comes to the fore and begins to manifest itself with noticeable signs. It is very important to determine the cause of the disease and its type at an early stage in order to prescribe timely and effective treatment. Sometimes the reasons are objective, then it is necessary to decide on a diagnosis