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For further information, see CMDT Part 18-09: Infertility
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Essentials of Diagnosis
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General Considerations
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Up to 20% of couples experience infertility at some point
The incidence increases with age, with a decline in fertility beginning in the early 30s and accelerating in the late 30s
The male partner contributes to about 40% of cases of infertility, and a combination of male and female factors is common
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Obtain history of sexually transmitted disease or prior pregnancies
Discuss ill effects of cigarettes, alcohol, and other recreational or prescription drugs on male fertility
Discuss factors that may lead to scrotal hyperthermia, such as tight underwear or frequent use of saunas or hot tubs
The gynecologic history should include
The menstrual pattern
Use and types of contraceptives
Libido
Sexual practices
Frequency and success of coitus
Correlation of intercourse with time of ovulation
Family history should inquire about family members with repeated abortions
General physical and genital examinations for both partners
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Differential Diagnosis
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Male factor infertility (hypogonadism, varicocele, alcohol or drug use, immotile cilia syndrome)
Polycystic ovary syndrome
Premature ovarian failure
Hyperprolactinemia
Hypothyroidism
Inadequate luteal progesterone or short luteal phase
Endometriosis
Uterine leiomyomas (fibroids) or polyps
Prior pelvic inflammatory disease
Pelvic adhesions, eg, pelvic surgery, therapeutic abortion, ectopic pregnancy, septic abortion, intrauterine device use
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Diagnostic Procedures
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Complete blood count, urinalysis, cervical culture for Chlamydia, rubella antibody determination, and thyroid function tests
A luteal phase serum progesterone above 3 ng/mL establishes ovulation
Ovulation predictor kits have largely replaced basal body temperatures for predicting ovulation
While basal body temperature charting is a natural and inexpensive way to identify most fertile days, it cannot predict ovulation but rather only retrospectively confirm that ovulation occurred
Coitus resulting in conception occurs during the 6-day period ending with the day of ovulation
Before additional testing, an ejaculate from the male partner for semen analysis is obtained after sexual abstinence for at least 3 days
Semen should be examined within 1–2 h after collection
Normal semen: volume, 2 mL; concentration, 20 million sperm per milliliter; motility, > 50% forward progression, > 25% rapid progression; and ≥ 30% normal forms
If the sperm count is abnormal, search for exposure to environmental and workplace toxins, alcohol or drug abuse, and hypogonadism
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Gross deficiencies of sperm (number, motility, or appearance) require a repeat semen analysis
A screening pelvic ultrasound and hysterosalpingography to identify uterine cavity or tubal anomalies should be performed
Obstruction of the uterine tubes requires either microsurgery or in ...