Dysmenorrhea etymologically means difficulty with menstrual flow.
However, we use this term to refer to painful menstruation (algomenorrhea). This pain precedes or accompanies menstruation. They may also be accompanied by diarrhea, vomiting, dizziness and headaches. There are several types of menstrual pain: pain that occurs during first menstrual periods, pain that occurs after years of pain-free menstrual periods; and pain with and without organic causes.
If this dysmenorrhea is debilitating in everyday life, you should consult a gynecologist.