Early childhood is a critical period for emotional, social, and cognitive development. Behavioural disorders during toddlerhood can significantly influence a child’s long-term psychological well-being, academic performance, and social adjustment. This review article explores the prevalence, types, causes, and consequences of behavioural disorders among toddlers, with special emphasis on the role of the maternal figure in prevention, early identification, and management. Drawing from contemporary research, this paper highlights how maternal attachment, mental health, parenting practices, and socio-cultural context shape toddler behaviour. The article also discusses evidence-based interventions and nursing implications. By synthesizing current literature, this review aims to guide healthcare professionals, educators, and caregivers in promoting healthy behavioural development during early childhood.