Catherine O'Hara had a rare condition, with reports variously describing it as situs inversus, dextrocardia situs inversus, or dextrocardia, a condition where the heart is positioned differently. The condition is considered rare, but details about its impact on O'Hara's life and health are not consistently reported. O'Hara has died at the age of 71, with some outlets referencing her previous comments about her health and the rare condition.