## 1 Introduction
This program can be used in children older than three years old [9]. Unfortunately, no study has been conducted to confirm the effectiveness of this program. Recent publications on the conservative management of diastasis recti in postpartum women recommend physiotherapy, especially anterior abdominal wall strengthening, which has been shown to have a positive effect on reducing the IRD [10; 11; 12]. However, no generally accepted protocol has been established so far. [PERSON] et al. [11] list the following conservative treatment options: abdominal exercises (strengthening of the transversus abdominis muscles or rectus abdominis muscles), postural training, education and training on in proper mobility and lifting techniques, methods to strengthen the transversus abdominis muscles (Pilates, functional training, [PERSON]'s technique exercises with or without abdominal splinting), the Noble technique (manual approximation of the rectus abdominis muscles during a partial sit-up), manual therapy (soft tissue mobilization, myofasical release), abdominal bracing and taping, the tubigrip or a corset. A Norwegian study [10] on this matter showed that even a weekly exercise program in addition to daily home exercise did not reduce the prevalence of diastasis. The use of minimally invasive techniques is particularly appropriate in pediatric surgery. Prolotherapy is the technique of injecting small amounts of an irritant solution into injured tissue in order to stimulate regenerative processes. [PERSON] et al. [13] described a technique for the minimally invasive closure of (pediatric) umbilical hernias: deflux, a biodegradable compound of dextranomer microspheres in hyaluronic acid, was injected percutaneously into the border and preperitoneal space in four quadrants of the hernia defect, thereby occluding the lumen. Follow-up visits showed the closure or reduction in the size of umbilical hernias in patients immediately after surgery; and within months, 21 (84%) of 25 hernias were closed. Similar protocols have been published using injection therapy to treat umbilical hernias in children [14]. [PERSON] and [PERSON] [15] reported the use of prolottherapy in a postpartum female patient with DRA. The injection consisted of dextrose as the active ingredient, lidocaine and methylcobalamin and was injected every 2 weeks for a total of seven prolottherapy sessions. The diastasis recti was reduced from 2.7 cm to 0.5 cm. Based on these two studies, it is possible that the interventional reduction in DRA in children using prolottherapy could also be implemented for DRA as well. To date, there are no published studies addressing this issue. Rectus abdominis diastasis occurs in many children and has a good prognosis as the abdominal musculature continues to develop. Even in adults, the surgical repair of DRA is controversial, but there are two indications for the surgical repair of DRA in children: a medical and a functional one. In some cases, children present with coexisting pathologies such as epigastric or persistent umbilical hernias, and where surgical intervention is required, a DRA repair in the same procedure seems opportune. In addition, DRA has been shown to be an independent risk factor for the recurrence of ventral hernia in adults [16]. In some cases, the protrusion is cosmetically and functionally disturbing, and surgical intervention should be considered. Various criteria have been proposed for operative repair in adults: Various criteria have been proposed for operative repair in adults such as the widening of the IRD above 3 cm [14] or the protrusion [14]. A Repair of DRA following after multiple pregnancies with loss of abdominal musculature has shown improvement in pulmonary and abdominal wall function [17]. Therefore, surgical repair should be discussed as a treatment for these rare individual cases. Unfortunately, few studies have addressed the possible treatment options for diastasis of the rectus abdominis in children.