THE EFFECTIVENESS OF LACTACTION MASSAGE ON COLOSTRUM EXPENDITURE IN THE PUBLIC MOTHER Background :Breastfeeding immediately after delivery provides many benefits for mothers and children. Breast milk that comes out for the first time contains colostrum which is highly nutritious and has antibodies that can protect newborns from disease. Based on the Demographic and Health Survey (IDHS), it is stated that more than half of children (57%) received breast milk within 1 hour after birth and 74 percent of children started breastfeeding within 1 day after birth.Purpose :Knowing to analyzing the effectiveness of lactaction massage on colostrum expenditure in postpartum mothersMethods:The research design used a pre-experimental design with a pretest-posttest control group design. Place of fresearch in the Medan City clinic in 2020.The population and sample in this study were all postpartum mothers on the first-third day totaling 24 people using purposive sampling technique. Comparison of 1: 1, where 12 respondents were intervened with lactaction massage and 12 respondents were the control group. The data that has been collected is processed by computer. Then analyzed the data, namely: Univariate and bivariate analysis using the Wilcoxon test with a significance level of 95% (0.05).Results: There is a difference in the average value of colostrum expenditure before and after the lactaction massage from 0.00 to 5.00. Wilcoxon test results obtained p value = 0.007 <0.05.Conclusion: There is the effectiveness of lactaction massage on colostrum expenditure in postpartum mothers.Suggestion: it is advisable to mothers who give birth to know complete information about the importance of giving colosrum to newborns. Keywords : Colostrum Expenditure, Lactaction Massage,Post Partum ABSTRAK Latar belakang: Pemberian ASI segera setelah melahirkan memberikan banyak manfaat bagi ibu dan anak. ASI yang keluar pertama kali mengandung kolostrum yang bergizi tinggi dan memiliki antibodi yang dapat melindungi bayi baru lahir dari penyakit. Berdasarkan Survei Demografi Dan Kesehatan (SDKI) menyatakan bahwa lebih dari separuh anak (57%) mendapatkan ASI dalam periode 1 jam setelah lahir dan 74 persen anak mulai disusui dalam 1 hari setelah lahir.Tujuan penelitian: untuk menganalisis efektifitas lactaction massage terhadap pengeluaran kolostrum pada ibu nifas.Metode: Desain penelitian menggunakan metode pre eksperimental design dengan pretest-posttest control group design. Tempat penelitian di klinik Kota Medan Tahun 2020. Populasi dan sampel seluruh ibu nifas hari pertama-ketiga berjumlah 24 orang dengan menggunakan teknik purposive sampling. Perbandingan 1:1, dimana 12 responden diintervensi lactaction massage dan 12 responden sebagai kelompok kontrol. Data yang telah dikumpulkan, diolah dengan komputer. Kemudian menganalisis data yaitu: Analisis univariat dan bivariat dengan menggunakan uji t test dengan tingkat kemaknaan 95% (0,05).Hasil: Terdapat perbedaan nilai rata-rata pengeluaran kolostrum sebelum dan setelah tindakan lactaction massage 0,00 menjadi 5,00. Hasil uji wilcoxon diperoleh nilai p = 0,007 < 0,05.Kesimpulan: Terdapat efektifitas lactaction massage terhadap pengeluaran kolostrum pada ibu nifas.Saran: Peneliti selanjutnya untuk meneliti variabel lainnya terkait lactaction massage dan pentingnya pemberian kolostrum pada bayi baru lahir. Kata Kunci: Pengeluaran Kolostrum, Lactaction Massage,Nifas