Before a gynaecologic operation that necessitates the cervix be open, giving access to the uterus and fallopian tubes, bladder control tampons cervical dilator slow expansion cervical canal is used to gently open the cervix. The danger of harm to the cervix during such a procedure is decreased by cervical dilatation. The cervical canal may need to be widened in this instance by dilation. Bladder control tampons cervical dilator slow expansion cervical canal is tiny, adjustable-size plastic or metal rod that is delicately put into the cervix canal in order to gradually open the cervix, starting with the tiniest and working up to greater sizes.