As part of healthy leisure activities, some people choose to collect things, such as stamps, key chains, comics, clothing, toys, art, musical instruments, vehicles, to name a few. To the extent that people can sustain collecting, without this affecting their economic, psychological and social well-being, it does not represent a problem. On the contrary, when collecting becomes exaggerated and compromises people's quality of life, it could be closely linked to obsessive-compulsive disorder (OCD). This document is a systematic review of this relationship, for which a total of 30 references were consulted, published during the last 15 years, with the nature of the study being analytical and reflective. The thematic axes addressed were: At what point does collecting become exaggerated? How is OCD related to exaggerated collecting? How to achieve sustainable collecting? The results obtained reflected that: Collecting becomes exaggerated when people do not have enough time to enjoy their collection, they stop meeting basic needs to pay for said hobby and if they do not have enough space to display it appropriately; OCD is related to exaggerated collecting when there is an obsession with accumulating things and it is difficult to get rid of them, which can lead to compulsive hoarder syndrome; As a sustainable alternative, there is digital art collecting, which saves physical space, is faster to acquire, lowers production costs, is less polluting, and is easier to verify its authenticity, among others. As final thoughts exaggerated collecting and OCD are related, people should consider alternatives that are environmentally responsible, economically affordable and that also contribute to the human and social development of the person.
