Because there is no way to know the gender of an intersex baby, experts recommend that intersex children be allowed to manifest their natural, innate gender, which may be witnessed as early as two years of age, usually by age three, and almost universally by age six. Not identifying a gender in an intersex baby may be socially difficult for parents, causing them uneasiness or even hostility on the part of others, but it can save the intersex person from a life of frustration, and mental and emotional anguish.