Sectio Caesarea adalah cara melahirkan janin dengan membuat sayatan pada dinding uterus melalui dinding depan perut atau vagina.Hasil data dariWorld Health Organization (WHO) standart rata- rata angka oprasi Sectio caesarea di sebuah negara adalah 10-15% saja, tetapi secara keseluruhan persalinan secara Sectio caesarea dilaporkan terjadi 25-50%, Tujuan penelitian ini untuk mengetahui (usia, paritas, riwayat persalinan, Partus Tak Maju, Ketuban Pecah Dini) yang berhubungan dengan persalinan Sectio caesarea di Rumah Sakit Umum Bandung Medan Periode 1 Januari – Desember 2019. Penelitian ini menggunakan metode Mix Methods. Populasi dalam penelitian ini adalah seluruh ibu bersalin yang mengalami sectio caesarea sebanyak 550 kasus dan sampel yang digunakan dalam penelitian ini 231 kasus, dilakukan dengan menggunakan analisa data yaitu analisa univariat,analisa bivariat dan multivariat. Dari hasil penelitian ini, dengan uji statistic pearson chi-square pada usia dengan sectio saecarea diperoleh nilai sig p=0,000<0,05. Paritas dengan sectio caesarea diperoleh hasil p=0,002=<0,05. riwayat persalinan dengan sectio saecarea diperoleh hasil p=0,000=<0,005, Partus Tak Maju diperoleh hasil p=0,007=<0,005, Ketuban Pecah Dini diperoleh hasil p=0,001=<0,005 Maka diperoleh ada hubungan usia, paritas, riwayat persalinan, partus tak maju, berat bayi lahir dengan sectio saecarea di RSU Bandung Medan dan faktor paling dominan dengan tingkat sectio caesarea adalah variabel riwayat persalinan dengan nilai signifikan 0,000 (p value < 0,05. Dari hasil kualitatif di dapatkan indikasi Ketuban Pecah Dini 1 orang, usia dan paritas yang beresiko 1 orang, usia dan Partus Tak Maju 1 orang, Riwayat SC 1 orang. Kesimpulan dari penelitian ini adalah hubungan faktor usia, paritas, riwayat persalinan, Partus Tak Maju, Ketuban Pecah Dini dengan sectio saecarea di RSU Bandung Medan Periode 1 Januari – Deesember 2019. Diharapkan pada petugas kesehatan agar dapat meningkatkan pelayanan konseling kehamilan terutama kepada ibu yang sedang hamil untuk menurunkan angka persalinan sectio caesarea.Kata Kunci: Usia, Paritas, Riwayat Persalinan, Partus Tak Maju, Ketuban Pecah DiniSectio Caesarea is a method of giving birth to a fetus by making an incision in the uterine wall through the front wall of the abdomen or vagina. The results of data from the World Health Organization (WHO) indicate that the average rate of Sectio Caesarea in a country is 10-15%, but overall deliveries are generally Sectio caesarea is reported to occur in 25-50%. The purpose of this study was to determine (age, parity, history of labor, Inadvertent Parturition, Premature rupture of membranes) associated with delivery of Sectio caesarea at Bandung General Hospital Medan Period 1 January – December 2019. This study uses the Mix Methods method. The population in this study were all maternity mothers who underwent sectio caesarea as many as 550 cases and the sample used in this study was 231 cases, carried out using data analysis, namely univariate analysis, bivariate and multivariate analysis. From the results of this study, with the Pearson chi-square statistical test on age with sectio caesarea, the value of sig p = 0.000 <0.05 was obtained. Parity with sectio caesarea obtained p=0.002=<0.05. history of labor with caesarean section obtained p = 0.000 = <0.005, Incomplete Parturition obtained p = 0.007 = <0.005, Premature rupture of membranes obtained p = 0.001 = <0.005 So there is a relationship between age, parity, history of labor, incomplete parturition advanced, the weight of the baby was born by sectio caesarea at RSU Bandung Medan and the most dominant factor with the rate of sectio caesarea was the birth history variable with a significant value of 0.000 (p value <0.05. From the qualitative results, it was obtained indications of premature rupture of membranes 1 person, age and parity at risk of 1 person, age and 1 person Inadvertent Parturition, History of SC 1 person. The conclusion of this study is the relationship between age, parity, history of childbirth, incomplete labor, premature rupture of membranes with sectio caesarea at RSU Bandung Medan Period 1 January - December 2019. It is hoped that health workers can improve pregnancy counseling services, especially to mothers who are pregnant. pregnant to reduce the rate of caesarean section delivery.Keywords: Age, Parity, History of Childbirth, Inadvertent Parturition, Premature Rupture of Membranes