The uterine adnexa include the fallopian tubes and ovaries. The uterine adnexa are located on the right and left sides of the uterus, with a pair of fallopian tubes and ovaries on each side. The fallopian tubes are a pair of slender and curved muscular tubes, which are the sites of the union of the ovum and spermatozoa, and also serve as a passageway for transporting the fertilized egg. The fallopian tubes are similar to the ovaries, with a total length of 8-14 cm. According to the morphology of the fallopian tubes, the tubes can be divided into four parts from the inside out, the mesenchymal part, which is the part that sneaks inside the uterus, the isthmus part, the jugular abdomen, which is the main place of fertilization, and the umbrella part, which opens the umbrella end of the tubes into the ovaries, and the umbrella end of the umbrella opening with a lot of finger-like protrusions, which have the function of picking up the eggs. The ovaries are a pair of flat oval glands that produce and expel eggs and secrete estrogen and progesterone. The ovaries are located in the lower part of the umbrella of the fallopian tube. After the ovaries discharge the eggs, they are transported by the umbrella of the fallopian tube to the juxta-peritoneum of the fallopian tube to wait for fertilization.