Background: The prevalence of chorionic conditions such as diabetes and hypertension is increasing among reproductive-aged women in Bangladesh. Pregnancy in women with uncontrolled chronic conditions may increase the risks of adverse consequences, including maternal and child morbidity and mortality. Appropriate contraception use can help women to prevent pregnancy until women have controlled chronic conditions and reduce the risks of adverse maternal and child health consequences. We investigate the associations between diabetes and/or hypertension and contraception use among reproductive-aged women in Bangladesh.Methods: We analysed data of 3,947 women, extracted from the 2017/18 Bangladesh Demographic and Health Survey. Women’s contraception using patterns were our outcome variable, which was classified as (i) any contraception method use vs no use, (ii) modern methods vs traditional methods or no use, (iii) modern methods vs traditional methods use. The explanatory variables were diagnosis of diabetes only, hypertension only or both diabetes and hypertension. The multilevel Poisson regression with robust variance was used to explore the associations.Results The overall prevalence of contraception use was 68.0% (95% CI: 66.3-69.7), 69.4% (95% CI: 61.8-76.1) in women with diabetes only, 67.3% (95% CI: 63.5-70.9) with hypertension only, and 62.0% (95% CI: 52.8-70.4) in women having both diabetes and hypertension. The prevalence of modern methods of contraception use was lower (46.4%, 95% CI: 37.4-55.6) and traditional methods use higher (16.6%, 95% CI: 13.8-16.8) in women who had both diabetes and hypertension than women who did not have these conditions. The fully adjusted regression model showed that the prevalence of traditional method use was 31% (95% CI: 1.02-2.01) higher in women having both diabetes and hypertension compared with their counterparts who had none of these conditions. Conclusion: In Bangladesh, women with both diabetes and hypertension were more likely to use traditional contraception methods. These women are likely to experience increased risks of unwanted pregnancies and associated adverse maternal and child health outcomes.