January 19, 2026
Sterility vs. Infertility: Understanding Key Differences
Sterility results from medical procedures like tubal ligation, while infertility is defined as the inability to conceive after one year of unprotected sex. Primary infertility affects couples who have never conceived, and secondary infertility affects those who previously had a successful pregnancy.
Key Takeaways
Sterility Caused by Medical Procedures
Sterility often stems from surgeries like tubal ligation, hysterectomy, or vasectomy, which permanently block the reproductive system. These procedures prevent natural conception by disrupting the pathway for eggs or sperm.
Infertility Defined by Timeframe and Age
Infertility is diagnosed after 12 months of unsuccessful conception attempts (6 months for women over 35). Factors like anovulation, low sperm count, or abnormal fallopian tubes can contribute to this condition.
Primary vs. Secondary Infertility
Primary infertility affects couples who have never achieved pregnancy, while secondary infertility occurs in those who previously had a successful pregnancy but now face conception challenges.
Female Fertility Testing: Ovulation and Ovarian Reserve
Diagnosing female infertility involves assessing ovulation (via menstrual history, blood tests, or ultrasounds) and ovarian reserve (using FSH, AMH, and antral follicle count tests) to evaluate egg quantity and quality.
Male Fertility Testing: Semen Analysis for Sperm Health
Male infertility accounts for 30-40% of cases and is evaluated through semen analysis, which measures sperm concentration, motility, and morphology to identify potential issues.
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