Sex dolls, in certain cases, may help reduce infidelity in relationships by providing an outlet for sexual desires without the emotional complications of cheating. For individuals who experience sexual dissatisfaction but are committed to their partners, a sex doll can offer a way to explore fantasies or fulfill desires without seeking outside relationships. In this sense, sex dolls may act as a preventive measure against infidelity, as they provide a non-threatening alternative to engaging in sexual encounters outside the relationship.

However, the impact of sex dolls on infidelity is not one-size-fits-all. For some, the introduction of a sex doll may serve as a way to express desires that might otherwise lead to cheating. Yet, for others, the use of a doll could trigger feelings of dissatisfaction or emotional distance, potentially leading to greater relationship issues. If one partner becomes emotionally attached to the doll or uses it in secrecy, it may ultimately drive a wedge between the partners, increasing the likelihood of infidelity.

In relationships where both partners communicate openly and establish healthy boundaries, sex dolls may help mitigate the temptation of infidelity. However, they should never be seen as a substitute for addressing deeper emotional or relational issues within the relationship.