I ve been married since 16 months now, haven t conceived. Gynae advised HSG. Here s the result: Clinical Indication: Primary Infertility. A few tiny persistent filling defects identified along the lower endometrial margin. Distal half of left fallopian tube appear dilated representing hydrosalpinx. Periitubal spillage of contrast is noted bilaterally. No free intraperitoneal air spillage of contrast is seen from either tube. IMPRESSION: Left-sided hydrosalpinx. Periitubal spillage of contrast is noted bilaterally without free intraperitoneal air spillage of contrast from either fallopian tube. A few tiny persistent filling defects identified along the lower endometrial margin , most likely air bubbles as recent ultrasound showing no abnormility of endometrium.