Is it normal for menstrual cramps to be short?

The total amount of menstruation in women is about 20ml~60ml. Dysmenorrhea is divided into primary and secondary. Secondary dysmenorrhea is found in uterine fibroids and endometriosis. It needs to see a doctor to clarify the cause. Primary dysmenorrhea is caused by prostaglandin secretion from uterus. The normal menstrual period of women is 2~8 days. In this range, it is normal. The small amount of menstruation may be caused by insufficient corpus luteum. Further examination is needed to judge.