<prompt> All are true regarding dystocia except:Dystocia is difficult laborIt is the MC indication for primary cesarean deliveryACOG recommends the cervix should be atleast 2 cms dilated for diagnosis of dystociaDystocia can be due to abnormality in power, passage and passenger  <response>: Dystocia literally means difficult labor and is characterized by abnormally slow labor progress.It arises from four distinct abnormalities that may exist singly or in combination: Abnormalities of the expulsive forces. Uterine contractions maybe insufficiently strong or inappropriately coordinated to efface and dilate the cervixuterine dysfunction. Also, there may be inadequate voluntary maternal muscle effort during second-stage labor. Abnormalities of presentation, position, or development of the fetus. Abnormalities of the maternal bony pelvisthat is, pelvic contraction. Abnormalities of soft tissues of the reproductive tract that form an obstacle to fetal descent.Common clinical findings in women with ineffective laborInadequate cervical dilation or fetal descent:Protracted laborslow progressArrested laborno progressInadequate expulsive effortineffective pushing.Fetopelvic disproportion:Excessive fetal sizeInadequate pelvic capacityMalpresentation or position of the fetusRuptured membranes without labor.Dystocia is the most common current indication for primary cesarean delivery.American College of Obstetricians and Gynaecology recommend 1995a that the cervix be dilated to 4 cm or more before dystocia is diagnosed, thus, the diagnosis often is made before active labor, and therefore before an adequate trial of labor which leads to unnecessary cesarean section. 