Updated: Jun 10, 2009
Menstruation disorders are a common problem during adolescence. These disorders may cause significant anxiety for patients and their families.1 Physical and psychological factors contribute to the problem. In order to treat menstruation disorders, becoming familiar with the normal menstrual cycle is important.
For a regular menstrual cycle, the median age of menarche is 12.77 years. The average interval between thelarche and menarche is about 2 years, and 90% of females menstruate by the time they have Tanner IV breast and pubic hair development. Most cycles occur between 21-35 days with 3-10 days of bleeding and 30-40 mL of blood loss. Anovulatory cycles and irregular menstrual patterns are common within 24 months of menarche.
Classification of menstrual disorders
Attempts are currently underway to establish a standardized international nomenclature for menstrual disorders. The existing broad classification is as follows:
Amenorrhea
Amenorrhea may be primary (ie, never menstruated) or secondary (ie, menarche, but no periods for 3 consecutive months). Primary amenorrhea is the absence of menstruation by age 16 years in the presence of normal pubertal development or by age 14 years in the absence of normal pubertal development. Evaluating for breast and uterine development in patients with a menstruation disorder is important. Secondary amenorrhea is more common than primary amenorrhea. The most common etiology is dysfunction of the hypothalamic-pituitary-ovarian (HPO) axis.
Dysmenorrhea
Dysmenorrhea is a very common complaint and may be primary or secondary, although primary dysmenorrhea is more prevalent. Symptoms include crampy lower abdominal and pelvic pain that radiates to the thighs and back without associated pelvic pathology. Dysmenorrhea is caused by prostaglandins and leukotrienes during ovulatory cycles. Endometrial prostaglandin levels increase during the luteal and menstrual phases of the cycle, causing uterine contractions. Secondary dysmenorrhea is rare, and pain is associated with pelvic pathology (eg, bicornuate uterus, endometriosis, pelvic inflammatory disease, uterine fibroids). An underlying pelvic pathology (eg, endometriosis) or an uterine anomaly (eg, fibroids) may be present in about 10% of severe dysmenorrhea cases.2
Menorrhagia
Menstrual bleeding that lasts more than 8-10 days with blood loss of over 80 mL is considered excessive.
Hormonal changes in the normal menstrual cycle
In the ovulatory cycle, the hypothalamus secretes gonadotropin-releasing hormone (GnRH), which stimulates the pituitary to release follicle-stimulating hormone (FSH). This, in turn, causes an ovarian follicle to grow and mature. In mid cycle, a surge of luteinizing hormone (LH) occurs with an FSH surge, resulting in ovulation. The developing follicle produces estrogen, which stimulates the endometrium to proliferate. After the ovum is released, FSH and LH levels fall, corpus luteum develops at the site of the ruptured follicle, and progesterone is secreted from the ovary. Progesterone causes the proliferating endometrium to differentiate and stabilize. Fourteen days after ovulation, menstruation results from endometrial shedding secondary to the rapid decline in the levels of estrogen and progesterone from the involuting corpus luteum.
Hormonal changes during anovulatory cycles
Anovulatory cycles are common in the first 2 years after menarche because of the immaturity of the HPO axis. They can also occur in various pathological conditions.
In anovulatory cycles, the follicular growth occurs with the stimulation from FSH; however, due to lack of LH surge, ovulation fails to occur. Consequently, no corpus luteum is formed and no progesterone is secreted. The endometrium continues its proliferative phase excessively. When the follicle involutes, estrogen levels drop and estrogen withdrawal bleeding occurs. Most anovulatory cycles are regular with normal bleeding; however, the unstable proliferative endometrium can shed irregularly, resulting in prolonged heavy bleeding.
Twelve percent of all gynecology referrals in the United Kingdom are for heavy menstrual bleeding.
Secondary amenorrhea and oligomenorrhea
Pregnancy
Hormonal contraception
Hypothalamic causes (eg, stress, exercise, eating disorder, chronic illness, drugs, tumor, obesity syndromes)
Pituitary causes (eg, hypopituitarism, tumor, infiltration, infarction)
Ovarian causes (eg, premature ovarian failure)
Androgen excess (eg, polycystic ovarian disease, adrenal hyperplasia, adrenal or ovarian tumor)
Other endocrine causes (eg, thyroid disease, Cushing disease)
Medications used in the management of menstrual disorders depend on the type of disorder and the etiology of the disorder.
In patients with secondary amenorrhea who have a completely normal physical examination, medroxyprogesterone can be used to diagnose anovulation as the cause of amenorrhea (progesterone challenge test). Estrogens are effective in controlling acute, profuse bleeding. Estrogen also induces formation of progesterone receptors, making subsequent treatment with progestins more effective.
Short-acting synthetic progestin. Progestin therapy in adolescents produces regular cyclic withdrawal bleeding until maturity of positive feedback system is achieved. Progestins stop endometrial cell proliferation, allowing organized sloughing of cells after withdrawal. Typically does not stop acute bleeding episode but produces a normal bleeding episode following withdrawal.
10 mg PO qd for 5-10 d
Adolescents: Administer as in adults
Aminoglutethimide increases hepatic metabolism of medroxyprogesterone
Documented hypersensitivity; cerebral apoplexy, undiagnosed vaginal bleeding, thrombophlebitis, and liver dysfunction
X - Contraindicated; benefit does not outweigh risk
Caution in asthma, depression, renal or cardiac dysfunction, or thromboembolic disorders
Combination pills of estrogen and progesterone in varying doses are used in the management of DUB. 21-day or 28-day cycles are used. Reduces secretion of LH and FSH from pituitary by decreasing amount of GnRH
Dysmenorrhea:
21-day cycle: 1 tab PO qd for 21 d, do not take tablets for 7 d then resume
28-day cycle: 1 tab PO qd; last 7 tabs in cycle are placebo to help maintain compliance
Menorrhagia, moderate: Initiate with 4 monophasic 35-mcg tab PO qid on day 1, then taper downward
Adolescents: Administer as in adults
May reduce hypoprothrombinemic effects of anticoagulants; estrogen levels may be reduced with coadministration of barbiturates, rifampin, and other agents that induce hepatic microsomal enzymes; an increase in corticosteroid levels may occur when administered concurrently with ethinyl estradiol; use of ethinyl estradiol with hydantoins may cause spotting, breakthrough bleeding, and pregnancy; increase in fluid retention caused by estrogen intake may reduce seizure control
Documented hypersensitivity; thrombophlebitis, undiagnosed vaginal bleeding
X - Contraindicated; benefit does not outweigh risk
Exercise caution in hepatic impairment, migraine, seizure disorders, cerebrovascular disorders, breast cancer, or thromboembolic disease
Induces the synthesis of DNA, RNA, and various proteins in target tissues. Reduces the secretion of LH and FSH from the pituitary by decreasing amount of GnRH.
Severe DUB: 25 mg IV q4h until bleeding stops, up to 4 doses; concurrently administer 35-mcg oral combination contraceptive pill PO q6h for 24-48 h, then bid to complete a 28-day cycle
Not established
May reduce hypoprothrombinemic effect of anticoagulants; coadministration of barbiturates, rifampin, and other agents that induce hepatic microsomal enzymes may reduce estrogen levels; pharmacologic and toxicologic effects of corticosteroids may occur as a result of estrogen-induced inactivation of hepatic P450 enzyme; loss of seizure control has been noted when administered concurrently with hydantoins
Documented hypersensitivity; known or suspected pregnancy; breast cancer, undiagnosed abnormal genital bleeding, active thrombophlebitis or thromboembolic disorders; history of thrombophlebitis, thrombosis or thromboembolic disorders associated with previous estrogen use (except when used in treatment of breast or prostatic malignancy)
X - Contraindicated; benefit does not outweigh risk
Certain patients may develop undesirable manifestations of excessive estrogenic stimulation, such as, abnormal or excessive uterine bleeding or mastodynia; estrogens may cause some degree of fluid retention (exercise caution); prolonged unopposed estrogen therapy may increase risk of endometrial hyperplasia
These agents block formation of prostacyclin, an antagonist of thromboxane, which is a substance that accelerates platelet aggregation and initiates coagulation.
For relief of mild to moderate pain. Inhibits inflammatory reactions and pain by decreasing activity of cyclooxygenase, which results in a decrease of prostaglandin synthesis.
500 mg PO once, after 6 h initiate 250 mg PO q6-8h; not to exceed 1.25 g/d
Adolescents: Administer as in adults
Coadministration with aspirin increases risk of inducing serious NSAID-related side effects; probenecid may increase concentrations and, possibly, toxicity of NSAIDs; may decrease effect of hydralazine, captopril, and beta-blockers; may decrease diuretic effects of furosemide and thiazides; may increase PT when taking anticoagulants (instruct patients to watch for signs of bleeding); may increase risk of methotrexate toxicity; phenytoin levels may be increased when administered concurrently
Documented hypersensitivity; peptic ulcer disease; recent GI bleeding or perforation; renal insufficiency
B - Fetal risk not confirmed in studies in humans but has been shown in some studies in animals
Category D in third trimester of pregnancy; acute renal insufficiency, interstitial nephritis, hyperkalemia, hyponatremia, and renal papillary necrosis may occur; patients with preexisting renal disease or compromised renal perfusion risk acute renal failure; leukopenia occurs rarely, is transient, and usually returns to normal during therapy; persistent leukopenia, granulocytopenia, or thrombocytopenia warrants further evaluation and may require discontinuation of drug
These agents are used to provide adequate iron for hemoglobin synthesis and to replenish body stores.
A nutritionally essential inorganic substance.
325 mg PO qd
Adolescents: Administer as in adults
Absorption is enhanced by ascorbic acid; interferes with tetracycline absorption; food and antacids impair absorption
Documented hypersensitivity
A - Fetal risk not revealed in controlled studies in humans
GI upset; iron toxicity is observed with ingestion of large amount and can be fatal especially in children; parenteral (IV) administration may cause several reactions, including headaches, malaise, fever, generalized lymphadenopathy, arthralgia, and urticaria; can cause severe anaphylaxis; others include phlebitis at infusion site
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Emans JS, Laufer M, Goldstein DP. Delayed puberty and menstrual irregularities. In: Pediatric and Adolescent Gynecology. 4th ed. 1998:163-261.
Gordon CM. Menstrual disorders in adolescents. Excess androgens and the polycystic ovary syndrome. Pediatr Clin North Am. Jun 1999;46(3):519-43. [Medline].
Harlow SD, Campbell OM. Epidemiology of menstrual disorders in developing countries: a systematic review. BJOG. Jan 2004;111(1):6-16. [Medline].
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menstruation disorders, irregularities of menstruation, menstrual disorders, amenorrhea, oligomenorrhea, dysmenorrhea, secondary dysmenorrhea, painful menstruation, menorrhagia, anovulatory cycles, irregular menstrual patterns, thelarche, menarche, dysfunctional uterine bleeding, DUB, menstruation disorders, hypothalamic-pituitary-ovarian axis, HPO axis, endometriosis, pelvic inflammatory disease, uterine fibroids, Crohn disease, constitutional delay of puberty, hypothalamic dysfunction, pituitary failure, gonadal failure, Turner Syndrome, Swyer syndrome, gonadotrophin deficiency, Kallmann syndrome, hyperandrogenic amenorrhea, hypothalamic amenorrhea, hypothyroidism, hyperprolactinemia, outflow tract obstructions, imperforate hymen, vaginal atresia, Müllerian agenesis, androgen insensitivity
Latha Chandran, MD, MPH, Associate Professor of Pediatrics, Associate Dean for Academic Affairs, Director, Division of General Pediatrics, State University of New York at Stony Brook School of Medicine
Latha Chandran, MD, MPH is a member of the following medical societies: American Academy of Pediatrics
Disclosure: Nothing to disclose.
Elizabeth Alderman, MD, Director of Fellowship Training Program, Director, Adolescent Ambulatory Service, Clinical Professor, Department of Pediatrics, Division of Adolescent Medicine, Albert Einstein College of Medicine and Montefiore Medical Center
Elizabeth Alderman, MD is a member of the following medical societies: Ambulatory Pediatric Association, American Academy of Pediatrics, North American Society for Pediatric and Adolescent Gynecology, and Society for Adolescent Medicine
Disclosure: Nothing to disclose.
Mary L Windle, PharmD, Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy, Pharmacy Editor, eMedicine
Disclosure: Pfizer Inc Stock Investment from financial planner; Avanir Pharma Stock Investment from financial planner ; WebMD Salary and stock Employment and investment from financial planner
Wayne Wolfram, MD, MPH, Clinical Associate Professor, Departments of Pediatrics, Children's Hospital and University of Cincinnati
Wayne Wolfram, MD, MPH is a member of the following medical societies: American Academy of Emergency Medicine, American Academy of Pediatrics, and Society for Academic Emergency Medicine
Disclosure: Nothing to disclose.
Paul D Petry, DO, FACOP, FAAP, Consulting Staff, Freeman Pediatric Care, Freeman Health System
Paul D Petry, DO, FACOP, FAAP is a member of the following medical societies: American Academy of Osteopathy, American Academy of Pediatrics, American College of Osteopathic Pediatricians, and American Osteopathic Association
Disclosure: Nothing to disclose.
Andrea L Zuckerman, MD, Assistant Professor of Obstetrics/Gynecology and Pediatrics, Tufts University School of Medicine; Division Director, Pediatric and Adolescent Gynecology, Tufts Medical Center
Andrea L Zuckerman, MD is a member of the following medical societies: American College of Obstetricians and Gynecologists, Association of Professors of Gynecology and Obstetrics, Massachusetts Medical Society, North American Society for Pediatric and Adolescent Gynecology, and Society for Adolescent Medicine
Disclosure: Nothing to disclose.
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