<prompt> Delayed puberty is defined if menstruation does not occur by:13 years14 years15 years16 years  <response>: Ans. is d, i.e. 16 yearsRef: Williams gynae 3rded, p329This is a controversial questionWilliams gynae 3rded, p329 saysPuberty is considered delayed if no secondary sexual characteristics are noted by age 13 or if menses have not commenced by age 16As per Medicine uptodate - delayed puberty is if mensturation does not begin by 15 years of ageBut its better to go with Williams Gynae. 