Latar Belakang: Dismenore merupakan keluhan yang sering dirasakan saat menstruasi yang diakibatkan oleh adanya kenaikan prostaglandin pada uterus. Dismenore ditandai dengan rasa kram pada perut, pusing, mual, muntah, dan perubahan mood yang tidak teratur dan banyak dialami wanita, terutama kalangan remaja. Terdapat beberapa faktor yang mempengaruhi kejadian dismenore diantaranya yaitustatus gizi, aktivitas fisik, dan kebiasaan mengkonsumsi junk food.
Metode: Penelitian ini merupakan penelitian observasional dengan rancangan cross sectional yang dilakukan di SMA Al Amin Paciran Lamongan tahun 2022. Penelitian ini melibatkan 47 siswi dengan metode total sampling. Data yang diteliti, meliputi status gizi yang diperoleh dari pengukuran antropometri (berat badan dan tinggi badan), data aktivitas fisik yang diperoleh dari kuesioner recall aktivitas fisik menggunakan physical activity level (PAL), data kebiasaan mengkonsumsi junk foood dengan kuesioner food frequency quetionnaire (FFQ), dan data kejadian dismenore menggunakan Kuesioner dismenore. Analisis bivariat menggunakan uji spearman.
Hasil: Hasil univariat menunjukkan bahwa mayoritas responden memiliki status gizi normal (51,1%), aktivitas fisik rendah dan berat (36,2%) dan kebiasaan mengkonsumsi junk food sering (89,4%), dan kejadian dismenore jarang (66,7%). Hasil analisis bivariat menunjukkan bahwa terdapat hubungan antara status gizi dengan kejadian dismenore (p=0,001). Tidak terdapat hubungan antara aktivitas fisik dengan kejadian dismenore (p=0,592). Terdapat hubungan antara kebiasaan mengkonsumsi junk food dengan kejadian dismenore (p=0,031).
Kesimpulan: Terdapat hubungan antara status gizi dan kebiasaan mengkonsumsi junk food dengan kejadian dismenore. Tidak terdapat hubungan antara aktivitas fisik dengan kejadian dismenore.

ABSTRACT
Background: Dysmenorrhea is a complaint that is often felt during menstruation caused by an increase in prostaglandins in the uterus. Dysmenorrhea is characterized by abdominal cramps, dizziness, nausea, vomiting, and irregular mood changes and is experienced by many women, especially teenagers. There are several factors that influence the incidence of dysmenorrhea including nutritional status, physical activity, and habits of consuming junk food.
Method: This study is an observational study with a cross sectional design conducted at Al Amin High School Paciran Lamongan in 2022. This study involved 47 female students with a total sampling method. The data studied included nutritional status obtained from anthropometric measurements (weight and height), physical activity data obtained from the physical activity recall questionnaire using the physical activity level (PAL), data on the habit of consuming junk food with the food frequency questionnaire (FFQ). ), and data on the incidence of dysmenorrhea using the dysmenorrhea questionnaire. Bivariate analysis using Spearman's test.
Result: Univariate results showed that the majority of respondents had normal nutritional status (51.1%), low and heavy physical activity (36.2%) and the habit of consuming junk food frequently (89.4%), and the incidence of dysmenorrhea was rare (66.7%). ). The results of the bivariate analysis showed that there was a relationship between nutritional status and the incidence of dysmenorrhea (p = 0.001). There was no relationship between physical activity and the incidence of dysmenorrhea (p=0.592). There is a relationship between the habit of consuming junk food with the incidence of dysmenorrhea (p = 0.031).
Conclusion: There is a relationship between nutritional status and the habit of consuming junk food with the incidence of dysmenorrhea. There is no relationship between physical activity and the incidence of dysmenorrhea.