While there may be a genetic predisposition to IBS, it is not solely hereditary. Environmental factors, diet, stress, and gut microbiota composition also contribute to the development and exacerbation of IBS symptoms. Family history may increase the likelihood of developing IBS, but it's not the sole determinant, and not everyone with a family history of IBS will necessarily develop the condition. Understanding these factors can help individuals manage their symptoms effectively and adopt lifestyle modifications that support digestive health.