Hypertension remains a serious health problem in Indonesia with a high prevalence, especially among the productive age group. Its treatment is not only done pharmacologically, but also through non-pharmacological therapies such as hydrotherapy. The purpose of this study was to determine the effect of hydrotherapy soaking warm water feet with salt on reducing blood pressure in hypertension sufferers in the working area of the Jawilan Community Health Center, Serang Regency in 2025. The research design used a quantitative method with a Quasi-experimental pretest-posttest with a control group. The sampling technique used was non-probability sampling, with a total of 36 respondents divided into intervention and control groups. The results showed that blood pressure in the intervention group decreased from 150/92 mmHg to 136/82 mmHg, while in the control group from 147/88 mmHg to 141/84 mmHg. Statistical tests using Paired Sample T-test and Independent Sample T-test showed a significant decrease in blood pressure in the intervention and control groups (p <0.05) so Ha was accepted Ho was rejected. In conclusion, hydrotherapy, involving warm water and salt foot soaks, significantly reduced blood pressure. This study recommends that hydrotherapy be used as an alternative non-pharmacological therapy recommended by healthcare professionals and independently implemented by hypertension sufferers.
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