Singh, P.Wadhwa, N.R.Kumhar, N.Gazi, K.H.Salahshour, S.Biswas, A.Mondal, S.P.2026-02-152026-02-1520251756-075610.1504/IJCBDD.2025.1512132-s2.0-105028452734https://doi.org/10.1504/IJCBDD.2025.151213https://hdl.handle.net/20.500.14517/8794Alcohol consumption during pregnancy poses significant risks to both maternal and fetal health. Understanding the dynamics of alcohol consumption during pregnancy and its absorption within the womb is crucial for assessing potential risks to fetal development. This research discusses two crucial mathematical models, first Compartment model of different stages, potential drinker to moderate drinker, moderate drinker to heavy drinker (in pregnant women) of alcohol consumers and second dynamical system is on absorption of alcohol in blood in fetus through placenta. The mathematical modelling is considered completely in fuzzy environment due to the uncertainty. All the results like existence and uniqueness of solution, stability of system are proposed and proved in fuzzy environment. Ultimately, this research contributes to the ongoing efforts to protect the health and well-being of both mothers and their unborn children by providing a quantitative tool for understanding and mitigating prenatal alcohol exposure with uncertainty. © © 2025 Inderscience Enterprises Ltd.eninfo:eu-repo/semantics/closedAccessFasFetal Alcohol SyndromeNonlinear Fuzzy Differential EquationsNumerical SimulationStability AnalysisArticle