=Diagnosis.=--The diagnosis of laceration of the cervix is readily made by digital examination. The palpating finger feels the one or more angles of laceration. The cervix loses its normal dome-like shape and becomes broader and flatter. In those cases of bilateral laceration where the eversion of the lips of the cervix is so marked that the angles of laceration are obliterated--becoming, in fact, 180 degrees--or where the angles have become filled up by a plug of cicatricial tissue, the angles of the laceration, of course, cannot be felt. We may often, however, detect the presence of the plug of cicatricial tissue, which feels harder than the surrounding tissues of the cervix; and we can always determine the presence of the eversion which seems to have obscured the lesion. As the finger is passed over the flattened presenting cervix it is found that the shape is not round, but oval, with the long axis antero-posterior. The finger passes around a corner or edge as it glides into the anterior or posterior vaginal fornix. This corner or edge is the extremity of the torn everted lip of the cervix. It corresponds approximately with the margin of the normal external os. The apparent external os, or the opening of the cervical canal, which occupies the center of the presenting cervix, is really a part of the cervical canal higher up than the normal os--a part of the canal that has been exposed by the laceration and separation of the lips. This fact should be remembered when the length of the uterus is measured by the sound. The measurement taken from the apparent external os is often half an inch, or even one inch, less than it would be if the cervix were restored. The degree of subinvolution of the uterus indicated by the measurement of the length is often, therefore, considerably greater than would be supposed after such imperfect measurement. The presence of an erosion on the face of the cervix may also be determined by palpation. The eroded surface has a soft and somewhat velvety feeling, in contrast with the smooth surface of the normal vaginal cervix covered with squamous epithelium. The cystic degeneration is readily detected by feeling the small shot-like cysts that cover the cervix; and the sclerotic condition is indicated by the increased hardness or induration, which is easily perceptible to the finger. The most satisfactory visual examination of a lacerated cervix is made through the Sims speculum, with the woman in the Sims or the genu-pectoral position. The bivalve speculum, by separating the upper vaginal walls, often increases the eversion of the lips and masks the lesion. The nature of the injury in cases of bilateral laceration with eversion may readily be proved in examining through the Sims speculum. If the anterior and posterior lips of the cervix be seized with tenacula and then drawn together, it will be observed that the area of erosion disappears and the normal shape of the cervix is approximately restored.