Reptiles are fascinating creatures that for a long time were believed to have limited mental capacities compared to birds and mammals. However, recent developments in the field of animal sentience show that reptiles can feel a wide range of states, including stress, pain, suffering, and pleasure. Given this new understanding, how well we treat captive reptiles is an open question. Reptiles form one of the important groups of animals in research, pet trade, and zoos globally. However, given the vast diversity in their behaviour, physiology, and species specificity and therefore their very specific needs, there is still no definitive protocol for maintaining them in captivity. Owners are unaware of the high sentience their reptilian pets possess, and this gives rise to poor animal welfare that is physically and mentally harmful to the animals. The reason for no scientific standards in reptile welfare stems from both the absence of enough studies and the lack of uptake of information by the owners and authorities. Intending to produce a good grasp of the needs of these cryptic yet magnificent creatures, this chapter details information on abnormal behaviours in captive reptiles and recommends husbandry practices, which are essentially ‘controlled deprivation’ of the environment that reduce abnormal behaviour and increase positive responses. This book chapter also suggests research aspects that can aid in filling the existing gap to treat reptiles better, physically and mentally.