Irregular Periods

What is considered irregular periods?

For most women, a menstrual cycle ranges from 21 to 35 days. Still, it is irregular for about 25% of women because the cycles are shorter or longer than average, heavier or lighter than usual, or accompanied by abdominal cramps.

What are some of the more common menstrual irregularities?

  • Amenorrhea – if the period suddenly stops for more than three months and you are not
  • pregnant
  • Oligomenorrhea – when periods occur more than 35 days apart
  • Polymenorrhea – when the period occurs less than 21 days apart
  • Menorrhagia – excessive bleeding
  • Prolonged menstrual bleeding – when the bleeding continues for more than eight days
  • Dysmenorrhea – when the period includes severe abdominal cramps
  • Irregular menstrual periods – when the cycle-to-cycle variation is more than 20 days
  • Shortened menstrual bleeding -- when the period lasts less than two days
  • Intermenstrual bleeding – spotting

What are the causes?

  • Fluctuating levels of oestrogen and progesterone
  • Using birth control
  • Certain medications
  • Too much exercise
  • Polycystic ovary syndrome
  • Pregnancy or breastfeeding
  • Stress
  • Both hyperthyroidism and hypothyroidism
  • Thickening of or polyps on the uterine lining
  • Uterine fibroids