In the subacute and chronic forms of the disease the course is usually a slow one. The exudation soon becomes plastic, or is so from the beginning. This leads to the agglutination of the pelvic organs to one another, and finally to the production of organized pseudo-membranes {230} of more or less strength. If the Fallopian tubes and ovaries are displaced, which is frequently the case under these circumstances, they are bound more or less firmly in the abnormal position. The adhesions are sometimes extremely delicate, and embrace the displaced organs as a net. At other times, or later, they may be so large and firm as to be readily felt through the vagina. Again, the false membranes may be broad and ribbon-like, and occupy a position so as to imprison the displaced organs as though elastic bands were stretched from the anterior to the posterior portion of the pelvic brim. When Douglas's cul-de-sac is bridged over and shut off from the abdominal cavity proper, serum or pus, sometimes both, may collect within it and give rise, from its round, fluctuating character and rather insidious formation, to the supposition that it is an incarcerated ovarian cyst; especially so since it may progressively increase in size and attain such dimensions as to distend the abdominal walls. This course of the disease is rare, however. Under favorable circumstances the course and termination of chronic pelvic inflammation would probably be much the same as where the disease is acute--_i.e._ it would run its natural course and end in resolution by absorption of the effused product. But, unfortunately, the symptoms of the disease are not violent enough to compel the patient to go to bed and remain at rest, so as to place the organs in the most favorable condition for recovery. The affection comes on so insidiously sometimes that when the patient is finally compelled to seek relief it may be found that extensive adhesions and considerable displacement, if not serious disease--especially of the ovaries and Fallopian tubes--exists. The inflammatory process is progressive, and will continue to be so until its cause shall be rendered inactive by the continuous and increasing severity of the symptoms, which force the sufferer to give up the struggle to remain on her feet and pursue her usual round of duties.