In our country, the hydrostatic reduction is performed in three different ways. 1. A method with negative contrast material (gas enema) and fluoroscopy is performed only in one hospital. 2. A second method is performed with the use of Gastrographin and guided with ultrasound examination, and finally controlled with x-ray, this method is used in the most places. 3. Sonographically guided enema using physiological saline solution which has been performed by the authors for five years is only used in the Transdanubian region and is getting more and more popular in the resent years. The case history of 34 patients with intussusception was analysed retrospectively and the results of hydrostatic reduction with ultrasound guidance were reviewed. In 22 of 34 patients vomiting was noticed, blood in the stool was found in approximately one-third of all cases, the abdominal pain as the most important sign was presented by all patients. In 24 of 34 patients with intussusception, a single hydrostatic reduction was completely successful, but 10 patients were operated on. With the use of author's method, the following advantages were noticed: control X-ray examination was not needed, and in cases of multiple intussusception of the small intestines all of the lesions were detected.