According to statistics cited by the U.N., .05 to 1.7 percent of the world’s population is intersex, defined as having external or internal sexual organs that are not clearly male or female. As a matter of course, doctors in the past performed surgery on babies, ostensibly so that they would live a “normal” life. Correspondent Erin Moriarty talks with Pidgeon Pagonis (who was born looking female on the outside but also with testes and XY chromosomes) about Pagonis’ memoir, “Nobody Needs to Know”; with professor Elizabeth Reis, author of “Bodies in Doubt: An American History of Intersex”; and with urologist Dr. Ilene Wong, who believes the medical community has failed intersex patients.