Obstetric ultrasound (US) is widely used in prenatal diagnosis to monitor the development and growth of the embryo or fetus and to detect congenital anomalies. The benefits offered by US in terms of timely diagnosis are extensive, but the quality of the examination is closely linked to the experience of the clinician [1]. Although proper training and assessment of acquired skills are considered of paramount importance in order to ensure a quality exam, there is no European standard establishing a training path with an objective assessment of operator’s capabilities. In fact, the experience is often evaluated merely on the basis of the number of clinical tests performed. However, an operator with daily US examination experience may not perform as well as a true expert due to inadequate training [2]. Many studies have studied gesture with the aim of establishing methods to discriminate between experts and beginners, which can also be used to study a specific training and objectively evaluate the acquired skills [4][5]. Inspired by these works and with the same aim, hand movement was also studied for fetal US [6]. This paper presents a study for the objective assessment of the operator’s experience in real obstetric US examinations based on hand gestures and forces applied with the US probe on the abdomen. A Data Recording System was designed to collect this information during real examinations performed by clinician with 3 different levels of experience (expert, intermediate and beginner) on pregnant women at the 2nd trimester. The results presented here focus on assessing a set of metrics with potential to provide an objective discrimination of the operator’s level of experience. This study was approved by the Regional Ethics Committee of Liguria (Italy) with the protocol number 379/2022 - DB id 12369.