Primary dysmenorrhea is a painful menstruation without demonstrable pelvic pathology.
Symptoms include intermittent painful spasms, crampy labor-like pain localized over the lower abdomen and the suprapubic area which may radiate to the lower back or inner thighs occurring during and occasionally starting prior to menstruation.
The pain may also be described as a dull ache or as a stabbing pain.
Accompanying symptoms include nausea, vomiting, diarrhea, constipation, abdominal bloating, changes in appetite, headaches, lightheadedness, fatigue, fever, muscle cramps, body and joint pains, tender breasts, nervousness, anxiety, irritability, depression, lethargy, fainting, increased urination and poor sleep quality.