One of the conditions that can cause complications during pregnancy is cephalopelvic disproportion (CPD), a condition wherein the baby’s head or body is too large to fit through the mother’s pelvis, according to the American Pregnancy Association. According to the American Pregnancy Association, “true CPD is rare, but many cases of ‘failure to progress’ during labor are given a diagnosis of CPD.” In this post, we discuss the causes of CPD.

Causes of CPD

According to the American Pregnancy Association, CPD can be cause by a variety factors, including a large baby at birth, the baby being born in an abnormal position, and the size and shape of the pelvis. Additionally, problems with the genital tract may also contribute to CPD, according to Dr. M.D. Masumdar at

Having a large baby

CPD can be caused by several different symptoms, particularly a large baby who weighs over ten pounds. In turn, factors contributing to the baby’s size are hereditary factors, diabetes, postmaturity (a condition in which the mother is still pregnant after her due date), and prior pregnancies. According to Dr. Mazumdar, “each succeeding baby tends to be larger and heavier.”

Abnormal fetal position

According to Dr. Mazumdar, “abnormal fetal positions” consist of an occipito-posterior position, wherein the fetus faces the mother’s abdomen instead of her back; brow presentation, which, according to Maggie Bunting at babycentre, means “the largest area of her head will be trying to fit through [the] pelvis during birth,” and the baby’s head appears to be looking up; and face presentation, in which the baby is born face-first.

Size and shape of the pelvis

Another factor that contributes to CPD is the size and shape of the expectant mother’s pelvis. An abnormal pelvis shape can result from diseases such as rickets or tuberculosis, from previous accidents, bone tumors, congenital deformities of the sacrum or coccyx, and so on.

Problems with the genital tract

Finally, issues with the genital tract may also cause CPD. Such issues include tumors that obstruct the birth passage, scarring of the cervix from previous operations, and congenital vaginal septum, which, according to the Center for Young Women’s Health, occurs when the vagina is divided into two sections, which essentially creates two vaginas.

If your loved one has suffered complications from birth injury resulting from CPD, call us for help. We will talk to you and review your case for free. The Tyrone Law Firm specializes in representing those who have suffered a devastating injury, such as birth injuries or traumatic brain injury resulting from the negligence of another. Our personal injury firm here in Atlanta has a very successful record of trying such cases.

Nelson Tyrone handles Brain Injury, Spine Injury and RSD/CRPS cases throughout the United States. He involves only the top medical, rehabilitation and life-care plan experts in the field. His results on behalf of clients include several of the largest settlements and verdicts on record, and he was recently able to obtain a $13.9 million verdict, one of the largest in the state of Georgia, for a birth injury client in 2014.

You can reach us at 404-377-0017 or via email at If we can’t help you, we will do our best to put you into the hands of lawyers who can.

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