• During fetal life, the future oocytes reach a peak of 7 million around 20 weeks of pregnancy, that number drops to 2 million by the time of birth. • During reproductive life, a woman ovulates on average of 360 times. • Between 15 and 60 years, man ejaculates on average of 34 to 56 liters of sperm that contain between 350 and 500 billion spermatozoa. • It takes about 50 million spermatozoa to fertilize only one oocyte. • It is estimated that there are over one hundred million intercourses every day throughout the world. • A young woman ,who has sex in the fertile age, has a 20% probability of getting pregnant in this cycle. • One out of ten couples has difficulty in conceiving. • In those couples who have difficulty conceiving, 30% of the cases is woman’s problem, 30% is man’s problem, 30% the problem is on both and in 10% there's no definable cause. • 80% of zygotes (pre-embryos) do not survive after implantation. • About 10% of the clinically recognized pregnancies spontaneously abort. • The incidence of twins in the general population is 1%. • 6 to 8% of fetuses are born before pregnancy term. • The rate of fetal malformations in the general population is 3%. • Cerebral palsy affects 0.2 to 0.5% of newborns. • It is necessary that woman produces an egg in ovaries, which must be able to freely navigate to the fallopian tube. • It is necessary that the man produces a large number of good quality spermatozoa able to progress through the cervix, to the Fallopian tube, where fertilization takes place. • The "timing" of intercourse is crucial (an oocyte survives only 24 hours and spermatozoa 2 to 3 days). • Fertilization Realized, it is required a normal uterus for the embryo to implant and develop.
Fertility
Human Reproduction in Numbers
CAUSES
EXAMS
TREATMENTS
Ovulation problems
Hormonal study
Ovulation induction
Premature menopause
Hormonal study
Egg donation
Karyotype
Obstruction of the fallopian tubes
Hysterosalpingosonography
IVF
Hysterosalpingography
Laparoscopy
Endometriosis
Ultrasound
Expecting
Laparoscopy
Medical treatment
Surgical / laser treatment
IVF
Fibroids
Ultrasound
Expecting
Polyps
Hysteroscopy
Medical treatment
Synechiae
Laparoscopy
Surgical treatment
Hostile Cervical Mucus
Postcoital test
medical treatment
Confirm ovulation
IUI
Anti-EZ antibodies
IVF
Absence of spermatozoa
Hormonal analysis
TESE / ICSI
(azoospermia)
Testicular biopsy
Sperm donation
Karyotype
Absence/Obstruction of the vas deferens
Scrotal examination
TESE / ICSI
Screening for cystic fibrosis gene
Low number of spermatozoa
IUI
(oligospermia)
IVF
ICSI
Reduced motility of spermatozoa
IUI
(asthenospermia)
IVF
ICSI
High percentage of abnormal forms of EZ
IUI
(teratozoospermia)
IVF
ICSI
Antisperm antibodies
Search anti-EZ antibodies
Preparation of Sperm / IUI
IVF
ICSI
Natural Conceiving