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Scanty, painful periods can also occur due to fibroid
polyp, cervical stenosis, cervical cancer
. You need to get a PAP smear
first to rule out cervical cancer. Asherman's syndrome is presence of multiple adhesions and scarring inside the uterus usually due to the result of a harshly done D&C. The adhesions can be meted away by adhesiolysis technique but if severe may warrant hysterectomy
. You need to contact a Gynaecologist at a well equipped Hospital preferably Government Hospitals or large Private set-ups.