Ray and colleagues define "unexplained infertility" as failure to achieve pregnancy when the semen analysis is normal, evidence for ovulation is present, and tubal patency has been established. The efficacy of treatment declines with increasing age and duration of infertility Infertility is a disease , defined by the failure to achieve a successful pregnancy after 12 months or more of appropriate, timed unprotected intercourse or therapeutic donor insemination, barber evaluation and treatment may be justified based on medical history and physical findings and is warranted after 6 months for women over age 35 years.

In unexplained infertility abnormalities are likely to be present but not detected by current methods including semen analysis in the man, assessment of the state of ovulation, ovulation reserve and patency of uterine tubes in the woman.

unexplained infertility is not a rare item of infertility. Approximately 15% of infertility couple will be diagnosed with unexplained infertility after their diagnostic workup Many researches studied the laparoscopic tubal factor like tubo-ovarian relation, tubal kinks and fimbrial pathology. But we need to scope on more tubal factors like fatty mesosalpinx , fimbria ovarica, methylene blue free spill and others

Inclusion Criteria:

• women with unexplained infertility.
• women in reproductive period between 20 and 35 years.
• primary or secondary infertility

Exclusion Criteria:

• with age less than 20 years and more than 35 years old
• other causes of infertility other than tubal factor
• Other contraindications for laparoscopy