Menstrual Disorders Practice Questions

Q: Cryptomenorrhea occurs due to which of the following conditions?

Imperforate hymen. ***Imperforate hymen*** - **Cryptomenorrhea** is a condition where monthly cyclical symptoms of menstruation occur, but there is no visible external bleeding due to an **obstruction in the outflow tract**. - An **imperforate hymen** is a congenital anomaly where the hymen completely blocks the vaginal opening, leading to retention of menstrual blood and causing cryptomenorrhea. - Patients typically present with **primary amenorrhea, cyclical pelvic pain, and a bulging hymen** on examination. *Fibroids* - **Uterine fibroids** are benign tumors of the uterus that can cause heavy menstrual bleeding (menorrhagia) or abnormal uterine bleeding, but not cryptomenorrhea. - They do not typically cause an obstruction of the **menstrual outflow tract**. *PCOS* - **Polycystic Ovary Syndrome (PCOS)** is an endocrine disorder characterized by irregular or absent menstruation (oligomenorrhea or amenorrhea) due to anovulation. - While periods may be absent, there is no obstruction preventing menstrual flow, so it does not cause **cryptomenorrhea**. *Asherman syndrome* - **Asherman syndrome** involves intrauterine adhesions that can cause amenorrhea or hypomenorrhea. - While it causes **absent or reduced menstrual flow**, the underlying mechanism is endometrial destruction, not outflow tract obstruction, so true cryptomenorrhea does not occur.

Q: A woman experiences menstrual blood loss of 100 ml every 30 days. How would this condition be classified?

Menorrhagia. ***Menorrhagia*** - **Menorrhagia** is characterized by abnormally **heavy or prolonged menstrual bleeding**, typically defined as blood loss exceeding **80 mL** per cycle or bleeding lasting more than 7 days. - In this case, a 100 mL blood loss is above the normal threshold, classifying it as menorrhagia. *Polymenorrhea* - **Polymenorrhea** refers to **frequently recurring menstrual cycles**, defined as a cycle length of fewer than **21 days**. - The woman's cycle length of 30 days falls within the normal range, so this term does not apply. *Hypomenorrhea* - **Hypomenorrhea** describes **unusually light or scanty menstrual bleeding**, with blood loss typically less than **30 mL** per cycle. - The 100 mL blood loss is significantly higher than what is seen in hypomenorrhea. *Normal menses* - **Normal menses** involve a typical blood loss ranging from **30 to 80 mL** per cycle and a cycle length between **21 and 35 days**. - A 100 mL blood loss exceeds the upper limit for normal menses, indicating an abnormal condition.

Q: What is the most common cause of primary amenorrhea?

Ovarian dysgenesis (Turner syndrome). ***Ovarian dysgenesis (Turner syndrome)*** - **Turner syndrome (45,XO karyotype)** is one of the most common causes of **primary amenorrhea**, accounting for approximately **12-15% of cases**. - It results from the complete or partial absence of one of the **X chromosomes**, leading to **gonadal dysgenesis** (streak gonads). - Characterized by **absent secondary sexual characteristics**, short stature, and elevated FSH/LH levels. - Turner syndrome is the most common form of **gonadal dysgenesis**, which collectively represents a leading category of primary amenorrhea. *Mayer-Rokitansky-Küster-Hauser syndrome* - This syndrome is characterized by **congenital agenesis of the uterus and upper two-thirds of the vagina**, but **normal ovaries** and secondary sexual characteristics. - Accounts for approximately **15% of primary amenorrhea** cases. - Less common than gonadal dysgenesis as a category, but MRKH is the second most common cause after gonadal dysgenesis. *None of the options* - This option is incorrect because **Turner syndrome** is a well-established and leading cause of primary amenorrhea among the choices provided. *Constitutional delay* - This refers to a **physiological delay in the onset of puberty**, where the individual will eventually develop secondary sexual characteristics and menarche. - While common, it represents a **delay rather than true amenorrhea**, and is typically diagnosed when other pathological causes are excluded. - Not considered the most common cause of **pathological primary amenorrhea**.

Q: What is the definition of menometrorrhagia?

Heavy and irregular menstrual bleeding. ***Heavy and irregular menstrual bleeding*** - **Menometrorrhagia** is defined by menstrual bleeding that is both **excessively heavy** (menorrhagia) and **irregularly timed** (metrorrhagia), occurring frequently and lasting longer than usual. - This condition can lead to significant blood loss and impact a woman's quality of life. *Excessive menstrual bleeding* - This is the definition of **menorrhagia**, which refers only to the quantity of blood loss during a normal duration and frequency of menstruation. - It does not account for the **irregularity** in timing or duration of bleeding. *Bleeding between menstrual periods* - This symptom is primarily known as **metrorrhagia**, indicating irregular bleeding that occurs outside of the normal menstrual cycle. - It does not specifically describe the **heaviness** of the bleeding episodes. *Regular uterine bleeding* - **Regular uterine bleeding** is the characteristic of a normal menstrual cycle, which is predictable in its timing and duration. - This option does not describe any abnormal bleeding pattern, such as being **heavy** or **irregular**.

Q: What is the upper age limit to diagnose a patient as having primary amenorrhea, if secondary sexual characteristics are present?

16 years. **16 years** - Primary amenorrhea is defined as the absence of menarche by the age of **16 years** despite the presence of **secondary sexual characteristics**, or by age 14 if secondary sexual characteristics are absent. - This definition helps in identifying individuals who may have underlying anatomical or endocrine disorders affecting the reproductive system that require investigation. *12 years* - While it's early in the normal range for menarche, the absence of menses at 12 years with secondary sexual characteristics is not typically considered primary amenorrhea unless other signs of delayed puberty are present. - The average age for menarche is around 12.5 years, so waiting until an older age when secondary sexual characteristics are established is more appropriate for a definitive diagnosis of primary amenorrhea. *14 years* - This age is the cutoff for diagnosing primary amenorrhea if **secondary sexual characteristics are absent**. - However, if secondary sexual characteristics are present, indicating onset of puberty, a longer waiting period (up to 16 years) is allowed before diagnosis, as menarche may still occur spontaneously. *18 years* - By 18 years, the absence of menarche would certainly warrant investigation, but the diagnostic criteria for primary amenorrhea dictate an earlier intervention. - Waiting until 18 years could delay the identification and management of potential underlying causes, which ideally should be addressed earlier.

Q: Cryptomenorrhoea is a feature of?

Vaginal atresia. ***Vaginal atresia*** - **Cryptomenorrhoea** is defined as menstruation occurring but not flowing out of the body due to an **obstruction in the outflow tract**. - **Vaginal atresia** or an **imperforate hymen** creates such an obstruction, leading to the accumulation of menstrual blood in the vagina (**hematocolpos**) and/or uterus (**hematometra**). *Empty sella syndrome* - This condition involves a flattened or shrunken **pituitary gland** and is typically associated with hormonal deficiencies, not an anatomical obstruction of menstrual flow. - It can cause menstrual irregularities or **amenorrhea** due to hypopituitarism, but not cryptomenorrhoea where menstruation forms but cannot exit. *Gonadal agenesis* - **Gonadal agenesis** means the complete absence of gonads, leading to a lack of estrogen production and consequently, a lack of pubertal development and menstruation. - This would result in **primary amenorrhoea** (no menstruation at all), not cryptomenorrhoea, as no menstrual cycle is established. *Turner syndrome* - **Turner syndrome** (45, XO) is characterized by **gonadal dysgenesis** (streak gonads), leading to undeveloped ovaries. - This results in a lack of estrogen and progesterone, preventing the initiation of menstruation and causing **primary amenorrhoea**, not cryptomenorrhoea.

Q: Most common cause of menorrhagia in adolescents?

Coagulation disorders. ***Coagulation disorders*** - **Coagulation disorders**, particularly **von Willebrand disease**, are the **most common identifiable pathological cause** of menorrhagia in adolescents, found in **13-20%** of cases with heavy menstrual bleeding. - These disorders lead to **impaired platelet function** or **coagulation factor deficiencies**, resulting in prolonged and heavy menstrual bleeding. - **ACOG recommends** screening for bleeding disorders in all adolescents presenting with menorrhagia, especially if present since menarche or refractory to treatment. - While anovulation due to immature HPO axis is common, coagulation disorders represent the key **underlying pathology** requiring investigation. *Thyroid disorder* - **Thyroid disorders** can affect menstrual cycles but are a less common primary cause of menorrhagia in adolescents compared to coagulation disorders. - Both **hypothyroidism** and **hyperthyroidism** can lead to menstrual irregularities, including heavy bleeding. *Leiomyomas* - **Leiomyomas (fibroids)** are benign uterine tumors that cause menorrhagia primarily in **older reproductive-aged women**, not typically in adolescents. - Their presence in adolescents is **rare**, making them an unlikely cause of menorrhagia in this age group. *Polyps* - **Endometrial polyps** can cause intermenstrual bleeding or menorrhagia, but they are **infrequent in adolescents**. - Polyps are more common in **perimenopausal** and **postmenopausal women**, so they are not the most common cause in younger patients.

Q: A 33-year-old female presents with heavy menstrual bleeding for 6 months. Examination and ultrasound show no abnormalities. After failing non-hormonal treatment, what is the next management step?

Hormonal therapy. ***Hormonal therapy*** - When **non-hormonal treatments** for heavy menstrual bleeding fail and there are no structural abnormalities, **hormonal therapy** is the next appropriate step to regulate the menstrual cycle and reduce bleeding. - This typically includes options like **oral contraceptive pills**, progestin-only pills, or a **levonorgestrel-releasing intrauterine system (LNG-IUS)**. *Endometrial sampling* - **Endometrial sampling** is primarily indicated to rule out endometrial hyperplasia or carcinoma, particularly in women over 45, with risk factors like obesity, or persistent abnormal bleeding unresponsive to treatment. - In a 33-year-old with no ultrasound abnormalities and heavy menstrual bleeding, **hormonal treatment** for symptomatic relief is usually attempted before invasive diagnostics, unless there are specific risk factors for malignancy. *Hysterectomy* - **Hysterectomy** is a definitive surgical procedure for heavy menstrual bleeding and is typically considered a last resort after other medical and less invasive surgical options have failed, especially in women who desire future fertility or wish to avoid major surgery. - Given the patient's age and the lack of structural abnormalities, less invasive and conservative treatments are preferred initially. *Surgical intervention (e.g., endometrial ablation)* - **Endometrial ablation** is an option for heavy menstrual bleeding when medical management fails, but it is considered a more invasive step than hormonal therapy and is generally reserved for women who have completed childbearing. - It would typically be considered after the failure of hormonal therapy, not immediately after non-hormonal therapy, especially in a younger patient.

Q: What is a common cause of unilateral dysmenorrhea?

One horn of malformed uterus. ***One horn of malformed uterus*** - **Obstructed rudimentary horn** with functional endometrium or **obstructed hemivagina** in uterine anomalies is a **classic cause of unilateral dysmenorrhea**. - The obstruction leads to accumulation of menstrual blood in the non-communicating horn or hemivagina, causing **severe cyclical unilateral pelvic pain** that worsens progressively with each menstrual cycle. - This typically presents in **adolescents or young women** after menarche and is a well-recognized gynecological emergency requiring surgical intervention. - Examples include: **unicornuate uterus with non-communicating rudimentary horn**, **uterus didelphys with obstructed hemivagina** (OHVIRA syndrome). *Endometriosis causing unilateral pain* - While endometriosis causes **dysmenorrhea**, it typically presents with **bilateral pelvic pain** and diffuse tenderness. - Endometriosis pain is usually **generalized** rather than strictly unilateral, though asymmetric involvement can occur. - The pain is associated with **deep dyspareunia**, **dyschezia**, and chronic pelvic pain rather than strictly unilateral cyclical pain. *Small fibroid at the utero tubal junction* - Fibroids (leiomyomas) can cause **dysmenorrhea and menorrhagia**, but unilateral presentation is uncommon. - Cornual fibroids may cause localized pain, but this is not a typical or common presentation of **unilateral dysmenorrhea**. - Pain from fibroids is usually related to **degeneration** or pressure effects rather than cyclical unilateral menstrual pain. *All of the options* - While multiple conditions can cause pelvic pain, **obstructed müllerian anomalies** (one horn of malformed uterus) are the **most classic and important cause** of true unilateral dysmenorrhea. - This is the diagnosis that must be ruled out when a patient presents with unilateral cyclical pelvic pain.

Question 1

Cryptomenorrhea occurs due to which of the following conditions?

Accepted Answer

Imperforate hymen

Answer

Fibroids

Answer

PCOS

Answer

Asherman syndrome

Question 2

A woman experiences menstrual blood loss of 100 ml every 30 days. How would this condition be classified?

Accepted Answer

Menorrhagia

Answer

Polymenorrhea

Answer

Hypomenorrhea

Answer

Normal menses

Question 3

A 46-year-old P3L3 complains of menorrhagia since 3 months. Initial diagnostic steps, including history, physical examination, and imaging, have been performed. The next line of management is?

Accepted Answer

Progesterone x 6 months

Answer

OC pills x 6 months

Answer

Hysterectomy

Answer

Dilation and Curettage (D & C)

Question 4

What is the most common cause of primary amenorrhea?

Accepted Answer

Ovarian dysgenesis (Turner syndrome)

Answer

None of the options

Answer

Mayer-Rokitansky-Küster-Hauser syndrome

Answer

Constitutional delay

Question 5

What is the definition of menometrorrhagia?

Accepted Answer

Heavy and irregular menstrual bleeding

Answer

Excessive menstrual bleeding

Answer

Bleeding between menstrual periods

Answer

Regular uterine bleeding

Question 6

What is the upper age limit to diagnose a patient as having primary amenorrhea, if secondary sexual characteristics are present?

Accepted Answer

16 years

Answer

14 years

Answer

18 years

Answer

12 years

Question 7

Cryptomenorrhoea is a feature of?

Accepted Answer

Vaginal atresia

Answer

Gonadal agenesis

Answer

Empty sella syndrome

Answer

Turner syndrome

Question 8

Most common cause of menorrhagia in adolescents?

Accepted Answer

Coagulation disorders

Answer

Thyroid disorder

Answer

Leiomyomas

Answer

Polyps

Question 9

A 33-year-old female presents with heavy menstrual bleeding for 6 months. Examination and ultrasound show no abnormalities. After failing non-hormonal treatment, what is the next management step?

Accepted Answer

Hormonal therapy

Answer

Endometrial sampling

Answer

Hysterectomy

Answer

Surgical intervention (e.g., endometrial ablation)

Question 10

What is a common cause of unilateral dysmenorrhea?

Accepted Answer

One horn of malformed uterus

Answer

Small fibroid at the utero tubal junction

Answer

Endometriosis causing unilateral pain

Answer

All of the options

Menstrual Disorders — MCQs

Menstrual Disorders — MCQs

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