Latar Belakang: Emesis gravidarum merupakan salah satu ketidaknyamanan umum yang dialami ibu hamil, khususnya pada trimester pertama. Salah satu alternatif penanganan non-farmakologis yang dapat digunakan adalah aromaterapi lemon. Pengetahuan ibu tentang terapi ini berperan penting dalam membentuk sikap ibu dalam mengatasi mual muntah selama kehamilan. Tujuan: Mengetahui hubungan antara pengetahuan ibu terkait aromaterapi lemon dengan sikap ibu dalam mengatasi mual muntah di Praktik Mandiri Bidan NKN. Metode Penelitian: Jenis penelitian observasional dengan desain penelitian cross-sectional. Sampel berjumlah 54 ibu hamil trimester I yang dipilih melalui teknik accidental sampling. Data dikumpulkan melalui kuesioner yang telah diuji validitasnya. Analisis data dilakukan secara univariat dan bivariat menggunakan uji Spearman Rank. Hasil Penelitian: Hasil penelitian menunjukkan sebagian besar responden memiliki pengetahuan baik dan sikap yang tergolong baik dalam mengatasi mual muntah. Analisis bivariat menunjukkan adanya hubungan yang signifikan antara pengetahuan ibu terkait aromaterapi lemon dengan sikap ibu dalam mengatasi mual muntah dengan nilai p-value 0,000 (p < 0,05). Kesimpulan: Terdapat hubungan yang signifikan antara pengetahuan ibu tentang aromaterapi lemon dengan sikap ibu dalam mengatasi mual muntah. Edukasi mengenai terapi alternatif seperti aromaterapi lemon dapat dijadikan sebagai salah satu pendekatan promotif dalam pelayanan kebidanan. Kata Kunci: Pengetahuan, Sikap, Aromaterapi Lemon, Mual Muntah

Background: Emesis gravidarum is one of the common discomforts experienced by pregnant women, especially during the first trimester. One of the non-pharmacological alternatives for this condition is by using lemon aromatherapy. Mother’s knowledge of this therapy plays an important role in shaping mother’s attitude to prevent nausea and vomiting during pregnancy. Purpose: To determine the correlation between mother’s knowledge about lemon aromatherapy and mother’s attitude in preventing nausea and vomiting at Independent Midwifery Practice NKN. Method: This research employed observational design with cross sectional approach. The samples were 54 pregnant women in the first trimester which were chosen by using accidental sampling technique. The data were collected by using questionnaire which has been validated. The data were analyzed by using univariate and bivariate analysis with Spearman Rank Test. Findings: The result showed that most of the respondents had good knwoedge and good attitude in preventing nausea and vomiting. The result of bivariate analysis showed that there was significant correlation between mother’s knowledge about lemon aromatherapy and mother’s attitude in preventing nausea and vomiting p-value 0,000 (p < 0,05). Conclusion: There is significant correlation between mother’s knowledge about lemon aromatherapy and mother’s attitude in preventing nausea and vomiting. The education about alternative therapy such as lemon aromatherapy can be promotive approach in midwifery care. Keywords: Knowledge, Attitude, Lemon Aromatherapy, Nausea Vomiting