Dysmenorrhoea is defined as difficult menstrual flow or painful menstruation. The term dysmenorrhea is derived from the Greek words dys, meaning difficult/painful/abnormal, meno, meaning month, and rrhea, meaning flow. While most women experience minor pain during menstruation, dysmenorrhea is diagnosed when the pain is so severe as to limit normal activities, or require medication.
The main symptom of dysmenorrhea is pain concentrated in the lower abdomen, in the umbilical region or the suprapubic region of the abdomen. It is also commonly felt in the right or left abdomen. It may radiate to the thighs and lower back Other symptoms may include nausea and vomiting, diarrhoea, headache, fainting, and fatigue.