The frequent occurrence of constipation and headaches in women is a matter of daily observation by every practitioner. The almost constant occurrence of these two symptoms in connection with painful menstruation, tender ovaries and uteri that are more or less displaced has led to the general conclusion that these conditions are the actual causes of the constipation and headaches. We have heard much in times past of "reflex headaches" and of "constipation due to the pressure of a displaced uterus on the rectum." We have likewise seen many of these cases in which the constipation and the headaches have gone on even with increasing severity, after the conditions within the pelvis had been corrected.
I am now seeing a certain important number of cases in which the pelvic symptoms, with the constipation and headaches, disappear after the cure of the conditions of the stomach and intestines, on which the constipation
REED CAL. CONSTIPATION AND HEADACHE IN WOMENA STUDY IN ETIOLOGY AND DIAGNOSIS. JAMA. 1912;LIX(5):354–358. doi:10.1001/jama.1912.04270080036011