Are redheads more prone to Endometriosis? In a 1995 study: It was concluded that “The results suggest an association between the occurrence of natural red hair and those factors that lead to the development of endometriosis.”https://pubmed.ncbi.nlm.nih.gov/7641926/ In a 2006 study: The study concluded, “we did not observe a significant relation between red hair color and […]