A member asked:

9 days late for my period. no pregnancy and no cysts. what other factors can cause a late period?!

7 doctors weighed in across 2 answers

Could be: Extreme weight gain or weight loss and competitive sports or extreme exercise.

Answered 12/19/2016

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Dr. Heidi Fowler answered

Specializes in Psychiatry

Late: Reasons for missed/late periods: low body weight, obesity, marked weight ^ or v, over-exercise, endurance athletics, breast-feeding, ^ stress, illness, eating disorders (bulimia or anorexia), anovulatory cycle (no egg released), travel, hormone irregularities, drug use, meds (i.e., birth control) or medical problems (i.e. PCOS). #1 reason is pregnancy.

Answered 10/31/2015

2.1k views

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