Primary amenorrhoea in a triple X female

The incidence of trisomy X in the newborn population is estimated to be 1 in 1,000 liveborn females. Most of them have normal physical appearance and puberty. Therefore, the reported number of triple X females in the literature is low. We herein report one patient with triple X chromosomes, primary amenorrhoea and normal intelligence. Steroid hormonal levels, clinical and ultrasound findings were suggestive of ovarian failure/gonadal dysgenesis. This case emphasizes the need for chromosomal analysis in women presenting with premature ovarian failure leading to primary or secondary amenorrhoea.