In a woman on DMPA injections for the past 1 year, the menstrual abnormality most commonly seen is:
With continuous progesterone present in the body due to the injections, there is regular inhibition of estrogenic proliferation of the endometrium and hence the prolonged usage can result in total absence of endometrial proliferation and consequent amenorrhea. Intermenstrual bleeding or spotting may also occur.
Menorrhagia
Metrorrhagia
Polymenorrhoea
Amenorhoea
Normal Menstruation, Abnormal Menstruation, Menopausal Physiology and forsight of conception