The article presents a systematic review of the literature on the activity of the uterus after childbirth, which analyzed 29 scientific studies with the aim of understanding the normal activity of the uterus and minimizing the risk of postpartum hemorrhage. Research has shown that the frequency of uterine contractions without medication reaches 2.4 to 2.8 contractions per 10 minutes, while with oxytocin it increases to 3.7 to 4.6 contractions per 10 minutes, and both values gradually decrease with time. Normal basal activity of the uterus after delivery is ≤ 15 mmHg and normal intensity ranges between 51–58 mmHg and 336–396 Montevideo units. Older studies from before 2020 did not confirm a significant relationship between uterine activity and total blood loss, but a small study from 2024 using electrohysterography (EHG) suggests a positive relationship. The article emphasizes the need for a uniform and objective method for monitoring uterine activity after delivery to better understand the effect of various drugs that promote uterine contractions. Electrohysterography shows potential in improving understanding of normal postpartum uterine activity and in recognizing postpartum hemorrhage.