To analyze the clinical characteristics, complications and bleeding causes of postpartum hemorrhage (PPH) patients, so as to reduce the occurrence of PPH and improve the maternal survival rate.

A total of 2528 PPH patients admitted to the First People's Hospital of Hangzhou from October 1, 2014 to July 31, 2021 were enrolled. According to whether they were admitted to ICU, the patients were divided into critical group (45 cases) and general group (2483 cases), and clinical data were collected. A retrospective study was conducted to analyze the characteristics of PPH patients, such as age, bleeding etiology, pregnancy complications, pregnancy complications, bleeding intervention methods, blood transfusion volume, pregnancy mode, maternal and infant prognosis.

The incidence of PPH was 7.2%(2528/35257), and the critical rate of PPH was 1.8%(45/2528). In PPH patients, the critical group was older [31.0 (28.0, 34.5) years vs 29.0 (27.0, 32.0) years, P=0.041], and hospital stay [9.0 (6.0, 12.0) days vs 4.0 (4.0, 6.0) days, P＜0.001], and incidence of fetal loss (22.2% vs 1.8%, P＜0.001), adverse pregnancy or intrauterine procedure (60.0% vs 8.1%, P＜0.001), invasive hemostasis (including uterine packing, uterine artery embolization, hysterectomy, and open hemostasis) (51.1% vs 1.4%, P＜0.001), pregnancy complications (93.4% vs 15.7%, P＜0.001) and pregnancy comorbidity (39.9% vs 3.6%, P＜0.001) were significantly higher in critical group compared to general group. No PPH maternal deaths occurred.

Postpartum hemorrhage is an obstetric emergency. Higher the maternal age, adverse pregnancy or intrauterine operation history, pregnancy complications or complications are more likely to develop into critical disease. If timely and effective treatment were carried out, the prognosis is better.