Which of these is a sign of previous child birth?

Daman & Diu Staff Nurse - 2018

Obstetrics & Gynaecology

Easy

Appeared in: Daman & Diu Staff Nurse - 2018

Explanation

A gaping introitus, or a widened vaginal opening, is a classic physical sign indicating a previous vaginal childbirth.
This occurs because the muscles of the perineum and the vaginal entrance are significantly stretched during the passage of the fetus, leading to a more relaxed and open state post-delivery.
The presence of carunculae myrtiformes, which are the permanent remnants of the torn hymen after childbirth, further confirms a past vaginal delivery.

Option A: A rigid abdominal wall is characteristic of a nulliparous woman (one who has not given birth).
Option B: A conical cervix with a round external os is the typical appearance of a nulliparous cervix.
Option C: This is a less specific and less reliable sign. While the uterus becomes larger and heavier after childbirth, the change in shape to 'ovoid' is not as distinct or universally accepted as the changes in the cervix and introitus.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differentiating physical signs of nulliparity versus multiparity as background academic context rather than a clinical decision trigger.
Recognizing the physical signs of parity is a fundamental skill in gynecological and obstetric assessment. It helps the nurse or clinician quickly understand a patient's reproductive history, which can guide further questioning and examination.
A gaping introitus can be clinically significant as it may be associated with an increased risk for pelvic organ prolapse. Its assessment is crucial for identifying patients who may benefit from pelvic floor muscle training (Kegel exercises) or further evaluation for pelvic floor dysfunction.
What if? If a woman has given birth one or more times, but only by Cesarean section (and never labored to full dilation), she would likely present with nulliparous signs on vaginal examination (e.g., a round cervical os and a non-gaping introitus) because the vagina and cervix have not been stretched by a vaginal delivery.

How to Approach the Question

First, identify the core of the question: it asks for a physical sign that indicates a woman has previously given birth (i.e., is multiparous).
Next, mentally review the anatomical and physiological changes that occur in a woman's body as a direct result of vaginal childbirth. Focus on the reproductive organs and abdominal wall.
Evaluate each option: 'Rigid abdominal wall.' Recall that pregnancy stretches the abdominal muscles, leading to laxity, not rigidity. This is a sign of nulliparity. Eliminate this option.
Evaluate 'Conical cervix with round external OS.' Recall from anatomy that this is the description of a cervix that has not been dilated by childbirth. A parous cervix has a slit-like os. Eliminate this option.
Evaluate 'Ovoid uterus.' While the uterus changes size, this is a vague description and not as definitive as other signs. Keep it as a possibility but look for a better answer.
Evaluate 'Gaping introitus.' The vaginal opening (introitus) is directly stretched during birth. This is a direct, visible, and lasting consequence. This is the strongest and most definitive sign among the choices.

Concept Tested & Keywords

Concept Tested: Differentiating physical signs of nulliparity versus multiparity.
Stem keywords: sign, previous child birth
Lead-in keywords: Which
Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.