Many things: : Can cause missed periods, including : pregnancy, thyroid dysfunction, delayed ovulation (disrupting the normal hormone cycling that is needed for menstrual period to start -ovarian cysts can sometimes do this as well), gaining or losing a lot of weight can disrupt normal menstrual cycles, certain types of contraceptives (mirena (levonorgestrel) iud, birth control pills), new stresses, or certain medications.
Answered 6/22/2017
5.3k views
Causes: 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 10/21/2015
2.1k views
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A doctor has provided 1 answer
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A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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