Primary dysmenorrhea occurs in young woman after menarche, due to:

Appeared in: IGNOU PB Bsc Entrance-2023

Explanation

Primary dysmenorrhea is directly caused by the overproduction of prostaglandins in the endometrium.
These prostaglandins trigger intense uterine contractions, leading to myometrial ischemia and pain.
The condition is functional, not structural, meaning there is no underlying disease of the reproductive organs.
Symptoms typically begin with the establishment of ovulatory cycles, usually 1-2 years after menarche.

Option B: Pelvic inflammatory disease (PID) is an infection of the female reproductive organs.
Option C: An adenomyoma is a focal mass of adenomyosis, where endometrial tissue grows into the muscular wall of the uterus.
Option D: Polyps are abnormal tissue growths, typically in the uterus or on the cervix.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pathophysiology of Primary Dysmenorrhea as background academic context rather than a clinical decision trigger.
Understanding the difference between primary and secondary dysmenorrhea is crucial for nurses to provide appropriate patient education and recommend the correct initial management.
First-line management for primary dysmenorrhea involves NSAIDs and heat application. Recommending these simple interventions can significantly improve a patient's quality of life.
What if? If a 35-year-old patient who previously had painless periods develops severe menstrual pain, the nurse should suspect secondary dysmenorrhea and encourage a gynecological evaluation to rule out conditions like endometriosis or fibroids, rather than just recommending NSAIDs.

How to Approach the Question

First, analyze the question stem. The key terms are 'Primary dysmenorrhea' and 'young woman after menarche'.
Recall the definition of primary dysmenorrhea: painful menstruation without any underlying pelvic pathology.
Evaluate the options based on this definition. The cause must be functional, not a structural or infectious disease.
Option A, 'Excessive levels of prostaglandin,' describes a functional, biochemical cause, which fits the definition of primary dysmenorrhea.
Options B, C, and D (Pelvic inflammatory disease, Adenomyoma, Polyps) all describe specific pathological conditions (infection or structural abnormalities). These are known causes of secondary dysmenorrhea.
Therefore, eliminate the options that represent pelvic pathology to arrive at the correct answer.

Concept Tested & Keywords

Concept Tested: Pathophysiology of Primary Dysmenorrhea
Stem keywords: Primary dysmenorrhea, young woman, after menarche
Lead-in keywords: due to
Clinical cues: The term 'primary' dysmenorrhea is a key cue, indicating the absence of underlying pelvic pathology.

QKEW4gRkQtCkFamCGEDc6L

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 1226-1228

E6 Medicine Harrison 22e Part 2 p. 1041-1043

Practise the full IGNOU PB Bsc Entrance-2023

Attempt every question from this paper in a timed mock, then review the full solution for each one.