But the fertilized egg can linger in the fallopian tube and not get into the uterus. Extremely rare (only 5% of cases of ectopic pregnancy) fruit may develop in the ovary or even in the free abdominal cavity.
Ectopic pregnancy is caused by such changes in the structure of the fallopian tube, which impede the passage of the fertilized egg in the uterus. The main reasons for this - borne infection of the uterine appendages, the bladder. Ectopic pregnancy may contribute to a variety of birth defects in the structure of the fallopian tubes, various benign tumors, endometriosis, surgery on the fallopian tubes, hormonal disorders and abortion.
Because of these factors, and narrows the lumen of the tube changes its peristalsis, resulting in disturbed permeability. Sometimes adverse pregnancy observed the use of reproductive technologies support: IVF stimulation of ovulation. Some experts believe that the ectopic pregnancy can occur after the use of the spiral as a contraceptive.
Ectopic pregnancy is now possible, and at the earliest timing. If there is any suspicion of misuse during pregnancy (pain, bleeding), should do pelvic ultrasound. Procedure recommended transvaginal probe (special probe is inserted into the vagina). If the uterus fertilized egg will be absent, the study will spend a few days later, or immediately hospitalized woman.
Already in the hospital if you can not confirm the diagnosis, most experts have resorted to laparoscopy. This operation, during which examined under anesthesia pelvic organs. If during the diagnosis of unfavorable pregnancy is confirmed, laparoscopy goes in the medical operation.