Delayed puberty is defined if menstruation does not occur by:
Ans. is d, i.e. 16 yearsRef: Williams gynae 3rd/ed, p329This is a controversial questionWilliams gynae 3rd/ed, p329 says"Puberty is considered delayed if no secondary sexual characteristics are noted by age 13 or if menses have not commenced by age 16"As per Medicine uptodate - delayed puberty is if mensturation does not begin by 15 years of ageBut its better to go with Williams Gynae.
Sex Intersexuality
13 years
14 years
15 years
16 years
16 years