Menstrual Disorders — MCQs

Menstrual Disorders Indian Medical PG Practice Questions and MCQs

Question 71: Irregular shedding of the endometrium occurs due to:

A. Epithelium being immature
B. It does not show the decidual-like oedema of the secretory phase
C. Regression of the corpus luteum function
D. Overactivity of the corpus luteum function (Correct Answer)

Explanation: **Explanation:** **Irregular shedding of the endometrium** is a type of Dysfunctional Uterine Bleeding (DUB) characterized by prolonged and heavy menstrual bleeding. **1. Why Option D is Correct:** The underlying pathophysiology is the **persistent activity or overactivity of the corpus luteum**. Normally, the corpus luteum regresses, leading to a sharp drop in progesterone and uniform shedding. In irregular shedding, the corpus luteum continues to secrete low levels of progesterone beyond the usual 14 days. This "prolonged progesterone effect" prevents the entire endometrium from shedding simultaneously. Consequently, some parts of the endometrium begin to shed while others remain in the secretory phase, leading to a mixture of secretory and proliferative patterns on biopsy (Arias-Stella-like reaction) and clinically prolonged bleeding. **2. Why Other Options are Incorrect:** * **Option A & B:** These descriptions are more characteristic of **Irregular Ripening** of the endometrium, where the endometrium fails to respond adequately to progesterone, showing poor secretory changes or lack of decidualization. * **Option C:** Regression of the corpus luteum is the **normal physiological process** that triggers menstruation. Rapid regression leads to normal menses, not irregular shedding. **3. Clinical Pearls for NEET-PG:** * **Diagnostic Hallmark:** A Dilatation and Curettage (D&C) performed on the **5th or 6th day** of the cycle showing **persistent secretory endometrium** alongside new proliferative patches. * **Halban’s Disease:** Another term sometimes used for persistent corpus luteum function. * **Management:** Progesterone is generally not helpful; the condition is often self-limiting or managed with NSAIDs/OCPs to regulate the cycle. * **Contrast:** Irregular **Ripening** is due to *deficiency* of corpus luteum (Luteal Phase Defect), whereas Irregular **Shedding** is due to *prolongation* of corpus luteum.

Question 72: A 19-year-old female develops bleeding from the nose during menstruation. What is she most likely suffering from?

A. Vicarious menstruation (Correct Answer)
B. Henosch Schonlein Purpura
C. Persistent urachus
D. Bleeding diathesis

Explanation: ### Explanation **Correct Answer: A. Vicarious Menstruation** **1. Why it is correct:** Vicarious menstruation is defined as cyclical bleeding from an extragenital site during the time of normal menstruation. The most common site is the **nasal mucosa** (epistaxis), though it can also occur from the skin, lungs (hemoptysis), or eyes (bloody tears). This phenomenon is thought to be caused by the increased capillary permeability and fragility of extragenital tissues in response to the high levels of circulating estrogens during the premenstrual phase. **2. Why other options are incorrect:** * **B. Henoch-Schönlein Purpura (HSP):** This is an IgA-mediated small-vessel vasculitis. While it presents with a purpuric rash, joint pain, and abdominal pain, the bleeding is not cyclical or synchronized with the menstrual cycle. * **C. Persistent Urachus:** This is a congenital anomaly where the connection between the bladder and the umbilicus remains patent. It typically presents with urinary drainage from the umbilicus, not cyclical nasal bleeding. * **D. Bleeding Diathesis:** Conditions like Von Willebrand Disease or hemophilia cause generalized bleeding tendencies (bruising, prolonged bleeding from cuts). While they can cause heavy menstrual bleeding (menorrhagia), the bleeding is not restricted to a specific extragenital site only during menstruation. **3. NEET-PG High-Yield Pearls:** * **Most common site:** Nasal mucosa (Epistaxis). * **Pathophysiology:** Increased vascular permeability due to estrogen; occasionally associated with **endometriosis** at extragenital sites. * **Clinical Clue:** Always look for the keyword **"cyclical"** or **"during menstruation"** in the history of extragenital bleeding. * **Treatment:** Usually involves hormonal suppression (e.g., OCPs or GnRH analogs) to stabilize the hormonal fluctuations.

Question 73: What is the first line treatment for Abnormal Uterine Bleeding?

A. Versapoint
B. Novasure
C. Medical management (Correct Answer)
D. Surgical management

Explanation: **Explanation:** Abnormal Uterine Bleeding (AUB) is a broad diagnosis encompassing any variation from the normal menstrual cycle. According to FIGO and ACOG guidelines, **Medical Management** is the established **first-line treatment** for most cases of AUB, particularly those related to ovulatory dysfunction (AUB-O), endometrial causes (AUB-E), or coagulopathy (AUB-C). The goal is to stabilize the endometrium, reduce blood loss, and avoid the risks associated with surgery. Common first-line agents include Combined Oral Contraceptive Pills (COCPs), high-dose Progestogens, Tranexamic acid, and the Levonorgestrel Intrauterine System (LNG-IUS), which is often considered the most effective medical intervention. **Analysis of Options:** * **Medical Management (Correct):** It is non-invasive, preserves fertility, and effectively manages symptoms for the majority of patients. Surgery is reserved for cases where medical therapy fails, is contraindicated, or if there is a structural pathology (like a large polyp or fibroid) requiring excision. * **Versapoint (Incorrect):** This is a bipolar electrosurgical system used during hysteroscopy for targeted tissue resection (e.g., polyps or small submucosal fibroids). It is a surgical intervention, not first-line. * **Novasure (Incorrect):** This is a brand of global endometrial ablation. While effective for AUB-E, it is a second-line surgical procedure used only when medical therapy fails and the patient has completed childbearing. * **Surgical Management (Incorrect):** Includes procedures like D&C, ablation, or hysterectomy. These are secondary options due to higher morbidity and impact on future fertility. **NEET-PG High-Yield Pearls:** * **Investigation of Choice (IOC):** Transvaginal Ultrasound (TVS) is the initial investigation; Saline Infusion Sonohysterography (SIS) is superior for intracavitary lesions. * **Gold Standard Investigation:** Hysteroscopy with guided biopsy (especially to rule out malignancy in women >45 years). * **LNG-IUS (Mirena):** Currently considered the "medical gold standard" for AUB-E and AUB-O, often reducing blood loss by over 90%.

Question 74: A 35-year-old multigravida aborted 5 months back at 17 weeks of gestation. She has not had her periods yet, and her urine pregnancy test is negative. An estrogen-progesterone withdrawal test is also negative. What is the likely diagnosis?

A. Pituitary failure
B. Ovarian failure
C. Anovulation
D. Asherman syndrome (Correct Answer)

Explanation: **Explanation:** The patient presents with **secondary amenorrhea** following a mid-trimester abortion. The key to this diagnosis lies in the **negative Estrogen-Progesterone (E+P) withdrawal test**. 1. **Why Asherman Syndrome is correct:** A negative E+P withdrawal test indicates that even with adequate hormonal stimulation, the endometrium fails to bleed. This signifies an **outflow tract obstruction** or **endometrial destruction**. In the clinical context of a recent pregnancy-related evacuation (abortion at 17 weeks), the most likely cause is intrauterine adhesions (synechiae) that have obliterated the uterine cavity, known as Asherman Syndrome. 2. **Why other options are incorrect:** * **Anovulation:** In anovulation, the endometrium is primed with estrogen but lacks progesterone. A progesterone challenge would be negative, but an **E+P challenge would be positive** (bleeding would occur). * **Pituitary Failure (Secondary Hypogonadism) & Ovarian Failure (Primary Hypogonadism):** In both conditions, the uterus and outflow tract are intact, but endogenous hormones are deficient. Therefore, providing exogenous Estrogen and Progesterone would result in a **positive withdrawal bleed**. **High-Yield Clinical Pearls for NEET-PG:** * **Step-wise approach to Amenorrhea:** 1. Rule out pregnancy (UPT) → 2. Progesterone Challenge → 3. E+P Challenge → 4. FSH/LH levels. * **Gold Standard Investigation** for Asherman Syndrome: **Hysteroscopy** (Diagnostic and Therapeutic). * **HSG Finding:** Characterized by "honeycomb appearance" or irregular filling defects. * **Most common cause:** Vigorous curettage of a pregnant or postpartum uterus (due to the softness of the basal layer of the endometrium).

Question 75: Dysfunctional uterine bleeding (DUB) is most commonly associated with which of the following conditions?

A. Polycystic ovarian disease
B. Endometrial tuberculosis
C. Metropathia haemorrhagica (Correct Answer)
D. Multiple fibroids

Explanation: **Explanation:** **Dysfunctional Uterine Bleeding (DUB)** is defined as abnormal uterine bleeding in the absence of any detectable organic pelvic pathology, systemic disease, or pregnancy. It is primarily a diagnosis of exclusion and is most commonly associated with **anovulation**. **1. Why Metropathia Haemorrhagica is correct:** Metropathia Haemorrhagica (also known as Schroeder’s Disease) is a specialized form of DUB typically seen in perimenopausal women. It is characterized by **anovulation**, leading to a state of "unopposed estrogen." The absence of a corpus luteum means no progesterone is produced. This results in continuous endometrial proliferation without secretory changes. Eventually, the hyperplastic endometrium outgrows its blood supply and sheds irregularly. Classically, it presents as a period of amenorrhea (6–8 weeks) followed by heavy, painless bleeding (epimenorrhagia). **2. Why the other options are incorrect:** * **Polycystic Ovarian Disease (PCOD):** While PCOD involves anovulation and can cause DUB, it is a systemic endocrine disorder. Metropathia Haemorrhagica is the classic pathological description specifically linked to the DUB mechanism in textbooks. * **Endometrial Tuberculosis:** This is an **organic/infectious** cause of bleeding (often leading to infertility or synechiae/amenorrhea), which excludes it from the definition of DUB. * **Multiple Fibroids:** These are **structural (organic)** lesions. Bleeding caused by fibroids is classified under "Leiomyoma" in the FIGO PALM-COEIN classification, not DUB. **Clinical Pearls for NEET-PG:** * **FIGO Classification:** DUB is now categorized under the **COEIN** (Non-structural) component of the PALM-COEIN system (Coagulopathy, Ovulatory dysfunction, Endometrial, Iatrogenic, Not yet classified). * **Histology of Metropathia:** Characterized by **Swiss-cheese hyperplasia** of the endometrium. * **Treatment of choice:** In DUB, medical management (OCPs, Progestogens, or LNG-IUS) is the first line. For Metropathia, D&C is often done to rule out malignancy and stop acute bleeding.

Question 76: A positive progesterone challenge test in a patient with secondary amenorrhea indicates:

A. Asherman syndrome
B. Endometrial tuberculosis
C. Hypopituitarism
D. Polycystic ovarian disease (Correct Answer)

Explanation: ### Explanation The **Progesterone Challenge Test (PCT)** is a diagnostic tool used to assess the functional status of the hypothalamic-pituitary-ovarian (HPO) axis and the patency of the outflow tract. **1. Why Polycystic Ovarian Disease (PCOD) is Correct:** A **positive PCT** (defined as withdrawal bleeding within 2–7 days of stopping progesterone) requires two essential conditions: * **Patent Outflow Tract:** The uterus, cervix, and vagina must be anatomically intact. * **Estrogen Priming:** The endometrium must have been previously exposed to sufficient endogenous estrogen to cause proliferation. In **PCOD**, patients have anovulation but high levels of endogenous estrogen (due to peripheral conversion of androgens). This estrogen thickens the endometrium; when exogenous progesterone is given and then withdrawn, the endometrium sheds, resulting in a positive test. **2. Why Other Options are Incorrect:** * **Asherman Syndrome & Endometrial Tuberculosis:** These conditions involve the destruction of the endometrial lining or the presence of intrauterine synechiae (adhesions). Even with adequate estrogen, there is no functional tissue to shed, leading to a **negative PCT**. * **Hypopituitarism:** This results in low FSH/LH levels, leading to **hypoestrogenism**. Without estrogen to prime the endometrium, progesterone cannot induce a withdrawal bleed, resulting in a **negative PCT**. **3. High-Yield Clinical Pearls for NEET-PG:** * **Next Step after Negative PCT:** Perform an **Estrogen + Progesterone Challenge Test**. If bleeding occurs, the outflow tract is intact, and the cause is likely Hypogonadotropic Hypogonadism (Pituitary/Hypothalamic failure). If no bleeding occurs, it confirms an **Outflow Tract Obstruction** (e.g., Asherman’s). * **Dose:** Medroxyprogesterone acetate (10 mg) for 5–10 days is the standard regimen. * **Key Concept:** Positive PCT = Anovulation + Adequate Estrogen + Intact Outflow Tract.

Question 77: Heavy menstrual bleeding is assessed by all of the following EXCEPT:

A. Passing clots more than 1 inch in diameter
B. Hemoglobin concentration below 12 g/dL
C. Menses lasting longer than 7 days
D. Blood loss more than 120 ml (Correct Answer)

Explanation: **Explanation:** Heavy Menstrual Bleeding (HMB) is clinically defined as excessive menstrual blood loss which interferes with a woman's physical, social, emotional, and/or material quality of life. **1. Why Option D is the Correct Answer:** The classic objective definition of HMB (formerly menorrhagia) is a total blood loss of **more than 80 ml** per cycle. Option D states "more than 120 ml," which is an incorrect threshold for the standard definition. While 120 ml is indeed heavy, it is not the diagnostic cutoff used in medical literature or clinical guidelines. **2. Analysis of Incorrect Options (Criteria for HMB):** * **Option A:** Passing large clots (greater than 1 inch or 2.5 cm) is a reliable clinical indicator of heavy flow, as the natural anticoagulants in the uterus cannot keep up with the volume of bleeding. * **Option B:** A drop in hemoglobin (Anemia) is a common objective consequence of chronic HMB. If a patient presents with iron deficiency anemia and heavy periods, it confirms the clinical significance of the blood loss. * **Option C:** Prolonged menses lasting more than 7 days is one of the primary criteria used to define HMB/menorrhagia. **3. NEET-PG High-Yield Pearls:** * **Gold Standard Measurement:** The alkaline hematin method is the gold standard for objective measurement but is only used in research. * **PBAC Score:** The Pictorial Blood Loss Assessment Chart (PBAC) is used in clinics; a score **>100** indicates HMB. * **PALM-COEIN:** This is the FIGO classification for the etiology of Abnormal Uterine Bleeding (AUB). * **First-line Investigation:** Transvaginal Ultrasound (TVUS). * **Medical Management:** Levonorgestrel Intrauterine System (LNG-IUS) is the first-line treatment for HMB.

Question 78: Withdrawal bleeding with progesterone is seen in an otherwise amenorrheic woman due to which of the following?

A. Hypogonadotropic hypogonadism
B. Anovulation (Correct Answer)
C. Ovarian failure
D. Tuberculous endometritis

Explanation: **Explanation:** The **Progesterone Challenge Test (PCT)** is a fundamental diagnostic tool in amenorrhea. For withdrawal bleeding to occur after progesterone administration, two physiological prerequisites must be met: 1. **Endometrial Priming:** The endometrium must have been previously exposed to endogenous **estrogen**, causing it to proliferate. 2. **Patent Outflow Tract:** There must be a functional uterus, cervix, and vagina. In **Anovulation (Option B)**, the ovaries produce estrogen (leading to endometrial proliferation), but because ovulation does not occur, no corpus luteum is formed and no progesterone is produced. This results in a state of "unopposed estrogen." Administering exogenous progesterone and then stopping it mimics the natural decline of the corpus luteum, causing the primed endometrium to shed (withdrawal bleed). **Why other options are incorrect:** * **Hypogonadotropic Hypogonadism (Option A):** Low FSH/LH levels lead to minimal estrogen production. Without estrogen to prime the endometrium, progesterone cannot cause a withdrawal bleed. * **Ovarian Failure (Option C):** In Premature Ovarian Failure, the follicles are depleted. Estrogen levels are critically low, resulting in a negative PCT. * **Tuberculous Endometritis (Option D):** This causes destruction of the endometrial lining or synechiae (Asherman-like syndrome). Even with adequate hormones, there is no functional tissue to shed. **NEET-PG High-Yield Pearls:** * **Positive PCT:** Confirms anovulation (e.g., PCOS) and implies adequate endogenous estrogen. * **Negative PCT:** Indicates either **low estrogen** (Hypothalamic/Ovarian failure) or an **outflow tract obstruction** (Asherman’s/Mulleris agenesis). * The next step after a negative PCT is the **Estrogen-Progesterone Challenge Test** to differentiate between low estrogen and anatomical defects.

Question 79: What is a cause of secondary dysmenorrhea in a young female?

A. Tuberculosis
B. Subserous fibroid
C. Endometriosis
D. All of the above (Correct Answer)

Explanation: **Explanation:** Dysmenorrhea is classified into primary (spasmodic, no underlying pathology) and **secondary (congestive, due to pelvic pathology)**. Secondary dysmenorrhea typically presents in women in their 20s or 30s and is characterized by pain that begins several days before menses and persists throughout the cycle. **Why "All of the Above" is correct:** * **Endometriosis (Option C):** This is the **most common cause** of secondary dysmenorrhea. Ectopic endometrial tissue undergoes cyclic bleeding, leading to inflammation, adhesions, and deep-seated pelvic pain. * **Tuberculosis (Option A):** In developing countries like India, Genital TB is a significant cause of chronic pelvic inflammatory disease (PID). Chronic inflammation and pelvic adhesions result in congestive dysmenorrhea. * **Subserous Fibroid (Option B):** While intramural fibroids are more commonly associated with pain, subserous fibroids can cause dysmenorrhea if they undergo torsion, degeneration, or exert pressure on surrounding pelvic nerves. **Clinical Pearls for NEET-PG:** 1. **Primary vs. Secondary:** Primary dysmenorrhea is caused by **PGF2α** excess and usually starts within 6–12 months of menarche (ovulatory cycles). Secondary dysmenorrhea appears years later. 2. **Gold Standard Investigation:** For most causes of secondary dysmenorrhea (like endometriosis or PID), **Laparoscopy** is the gold standard for diagnosis. 3. **Adenomyosis:** Another high-yield cause; suspect this in multiparous women with a "bulky, globular uterus" and severe dysmenorrhea. 4. **Treatment:** While NSAIDs are first-line for primary dysmenorrhea, secondary dysmenorrhea requires treating the **underlying pathology**.

Question 80: Cryptomenorrhea occurs due to:

A. Imperforate hymen (Correct Answer)
B. Asherman's syndrome
C. Mullerian agenesis
D. All

Explanation: **Explanation:** **Cryptomenorrhea** (hidden menstruation) refers to a condition where menstrual blood is produced by the uterus but cannot escape the genital tract due to an anatomical obstruction in the outflow tract. **1. Why Option A is Correct:** The **imperforate hymen** is the most common cause of cryptomenorrhea. In this condition, the vaginal opening is completely occluded by a membrane. During puberty, the endometrium sheds normally, but the blood accumulates in the vagina (**hematocolpos**), and eventually the uterus (**hematometra**). This presents clinically as primary amenorrhea with cyclical pelvic pain and a bulging, bluish membrane on examination. **2. Why Other Options are Incorrect:** * **Asherman’s Syndrome (Option B):** This involves intrauterine adhesions that obliterate the uterine cavity. Here, the endometrium is damaged or absent; therefore, **no blood is produced**. This is a cause of true secondary amenorrhea, not hidden menstruation. * **Mullerian Agenesis (Option C):** Also known as MRKH syndrome, this is characterized by the congenital absence of the uterus and upper two-thirds of the vagina. Since there is **no functional uterus** to produce menstrual blood, cryptomenorrhea cannot occur. **Clinical Pearls for NEET-PG:** * **Classic Presentation:** A pubertal girl with primary amenorrhea, cyclical abdominal pain, and a palpable midline mass (distended bladder or hematometra). * **Other causes of Cryptomenorrhea:** Transverse vaginal septum and atresia of the cervix. * **Treatment:** For imperforate hymen, the definitive treatment is a **cruciate incision** to allow the drainage of the "chocolate-colored" old blood. * **Distinction:** Always differentiate cryptomenorrhea (outflow obstruction) from true amenorrhea (hormonal or end-organ failure).

Practice by Chapter

Normal Menstrual Physiology

Practice Questions

Primary Dysmenorrhea

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Secondary Dysmenorrhea

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Premenstrual Syndrome and PMDD

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Primary Amenorrhea

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Secondary Amenorrhea

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Polycystic Ovary Syndrome

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Abnormal Uterine Bleeding: Classification

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Evaluation of Menstrual Disorders

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Management Approaches to Menstrual Disorders

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