Latar Belakang: Hipertensi disebut the silent killer disease karena terjadinya sering tanpa keluhan dan tidak menunjukkan gejala, sekitar 32% penderita hipertensi tidak menyadari bahwa mereka mengalami hipertensi. Apabila penyakit hipertensi tidak segera ditangani maka dapat berdampak pada munculnya penyakit degeneratif seperti penyakit jantung, gagal ginjal dan penyakit pembuluh darah. Tujuan penelitian: untuk mengetahui hubungan pengetahuan hipertensi dengan perilaku kontrol darah pada pasien hipertensi di UPTD Puskesmas Abiansemal III. Metodologi penelitian: desain penelitian ini menggunakan analitik correlation dengan pendekatan cross sectional. Lokasi penelitian di UPTD Puskesmas Abiansemal III dengan jumlah sampel 290 orang. Metode sampling menggunakan excecutive sampling, instrumen yang digunakan adalah kuesioner. Analisis data menggunakan analisis univariat dan bivariat. Hasil : penelitian ini menunjukkan responden dengan kategori pengetahuan baik sebesar 95 orang (32,8%), pengetahuan cukup sebesar 114 orang (39,3%), dan pengetahuan kurang sebesar 81 orang (27,9%). Responden dengan kategori perilaku baik sebesar 105 orang (36,2%), kategori cukup sebesar 99 orang (34,1%), dan kategori kurang sebesar 86 orang (29,7%). Ditemukan hubungan secara signifikan antara pengetahuan hipertensi dengan perilaku kontrol tekanan darah pada pasien hipertensi di UPTD Puskesmas Abiansemal III dengan pvalue=0,000, r=0,516. Kesimpulan : Terdapat hubungan sedang antara pengetahuan hipertensi dengan perilaku kontrol tekanan darah pada pasien hipertensi dengan nilai koefisien korelasi sebesar 0,516 dan p-value

Background. Hypertension is called the silent killer disease because it often occurs without symptoms and does not show signs. Around 32% of hypertensive patients are unaware that they have hypertension. If hypertension is not promptly treated, it can lead to the emergence of degenerative diseases such as heart disease, kidney failure, and vascular diseases. The purpose of this study was to determine the correlation between knowledge and blood pressure control behavior in hypertension patients at Public Health Center III Abiansemal. Method. This study employed an analytical correlation with a cross-sectional approach. The research was held at Public Health Center III Abiansemal with a sample of 290 respondents. The sample was recruited through executive sampling. Data were collected using a questionnaire analyzed using univariate and bivariate analysis. Results. Findings indicated that 95 respondents (32.8%) had good knowledge, 114 respondents (39.3%) had sufficient knowledge, and 81 respondents (27.9%) had poor knowledge. Respondents with the good control behavior category were 105 respondents (36.2%), the sufficient control category was 99 respondents (34.1%), and the poor control category was 86 respondents (29.7%). A significant correlation was found between hypertension knowledge and blood pressure control behavior in hypertensive patients at Public Health Center III Abiansemal with a p-value of 0.000, r=0.516. Conclusion. There is a moderate correlation between hypertension knowledge and blood pressure control behavior in hypertensive patients, with a correlation coefficient of 0.516 and p-value