But you see irregularity in menstrual periods and flow is an important side effect
shots. For most women, periods become fewer and lighter. After one year, half of the women who use the birth control shot will stop having periods completely.
According to a survey done by Brown university, It was seen in studies that after a year of Depo-Provera injections, 57% of women were not menstruating and after 2 years, 68% of women were not menstruating.In some women heavy periods were seen.