Literature search reveals that molar-incisor hypomineralisation (MIH) is a routinely encountered dental abnormality noticed around the globe in the recent past. This dental abnormality is often associated with complications that would invariably affect the quality of life of the individual in addition to posing a great treatment challenge to the operator. It is a common finding that the affected teeth are usually more prone to caries and enamel breakdown in the post-eruptive phase. Hence, it is considered that this condition could be accountable for a substantial amount of childhood caries since this condition has high prevalence. Recognition of the individuals at threat and early diagnosis can lead to the initiation of more effective and conservative treatment. This paper is intended to focus on the various aspects pertaining to molar-incisor hypomineralisation.