Cesarean scar pregnancy is an implantation disorder that appears as a complication of a previous Cesarean section. Because of the increased incidence of Caesarean sections, but also better diagnostic capabilities, an increase in incidence has been reported. The exact mechanism of occurrence is still unknown, but what is known is that previous uterine interventions are one of the major risk factors. Pregnant women with Cesarean scar pregnancy can be asymptomatic and accidentally detected by a routine ultrasound examination, or may present with vaginal bleeding and / or abdominal pain. Transvaginal ultrasound is the gold standard in diagnosis, and magnetic resonance imaging is used in complicated cases where it is necessary to better determine relationships with surrounding tissues. There is no unified stand on the most effective treatment of Cesarean scar pregnancy. The aim of the treatment is to terminate the pregnancy and prevent complications, as well as preserve fertility. The most common medical treatment is local methotrexate, alone or in combination with another method. The surgical methods include: suction curettage, uterine artery embolization, hysteroscopy, transvaginal excision and laparoscopic excision. It is also possible to simultaneously apply a combination of different methods to achieve a better result. For pregnant women who decide to continue their pregnancy it is possible to have a live-born baby, but with a high rate of complications due to uterine rupture, placenta accreta spectrum, and hysterectomy, which results in a permanent loss of reproductive ability. The aim of this paper is to show implantation disorders and pay special attention to Cesarean scar pregnancy to indicate the need for early diagnosis and a wide range of possible interventions.