... coition, provided that impregnation does not take place at once, is to engorge the uterine vessels, to alter the nature of the glandular secretions, to cause profound reflex disturbances, and thus to produce such changes in the endometrium as to lead to local inflammation and to general nervous exhaustion. Backache, leucorrhea, and irritable bladder are ... — The Four Epochs of Woman's Life • Anna M. Galbraith
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