What are the cause of sterility?
Answers: [edit] Primary vs. secondary
Couples next to primary infertility have never be able to conceive [4], while, otherwise, secondary infertility is difficulty conceiving after already have conceived and carried a normal pregnancy. Technically, lesser infertility is not present if in attendance has be a change of partner.
Some women are infertile because their ovaries do not mature and release eggs. In this armour synthetic FSH by injection or Clomid (Clomiphene citrate) via a pill can be given to stimulate follicles to mature surrounded by the ovaries.
[edit] Causes in any sex
Factors that can cause masculine as well as womanly infertility are:
Genetic
A Robertsonian translocation in any partner may cause returning abortions or complete infertility.
General factors
Diabetes mellitus, thyroid disorders, adrenal disease
Hypothalamic-pituitary factor:
Kallmann syndrome
Hyperprolactinemia
Hypopituitarism
[edit] Female infertility
Factors relating only to womanly infertility are:
General factors
Significant liver, kidney disease
Thrombophilia
Hypothalamic-pituitary factor:
Hypothalamic dysfunction
Ovarian factors
Polycystic ovarian syndrome
Anovulation
Diminished ovarian reserve, also see Poor Ovarian Reserve
Premature menopause
Menopause
Luteal dysfunction
Gonadal dysgenesis (Turner syndrome)
Ovarian neoplasm
Tubal/peritoneal factor
Endometriosis
Pelvic adhesions
Pelvic inflammatory disease (PID, usually due to chlamydia)
Tubal occlusion
Tubal dysfunction
Uterine factor
Uterine malformations
Uterine fibroids (leiomyoma)
Asherman's Syndrome
Cervical factors
Cervical stenosis
Antisperm antibodies
Insufficient cervical mucus (for the travel and survival of sperm)
Vaginal factor
Vaginismus
Vaginal obstruction
Genetic factor
Various intersexed conditions, such as androgen insensitivity syndrome
[edit] Male infertility
Factors relating individual to male infertility include[5]:
Pretesticular cause
Hypogonadism due to various cause
Drugs, alcohol, smoking
Strenuous riding [Bicycle, Horseback]
Testicular factors
Bad semen standard
Abnormal sperm morphology
Azoospermia (complete lack of sperm contained by semen, can be due to scar tissue within testicle)
Genetic defects on the Y chromosome
Y chromosome microdeletions
Abnormal set of chromosomes
Klinefelter syndrome
Neoplasm, e.g. seminoma
Idiopathic washout
Cryptorchidism
Varicocele
Trauma
Hydrocele
Mumps
Testicular dysgenesis syndrome
Posttesticular causes
Vas deferens jam
Lack of Vas deferens, often related to genetic marker for Cystic Fibrosis
Infection, e.g. prostatitis
Retrograde ejaculation
Hypospadias
Impotence
Acrosomal defect/egg penetration deformity
[edit] Combined infertility
In some cases, both the man and woman may be infertile or sub-fertile, and the couple's infertility arises from the combination of these conditions. In other cases, the cause is suspected to be immunological or genetic; it may be that respectively partner is independently fertile but the couple cannot conceive together without assistance.
[edit] Unexplained infertility
In almost 15% of cases the infertility investigation will show no abnormalities. In these cases abnormality are likely to be present but not detected by current methods. Possible problems could be that the egg is not released at the optimum time for fertilization, that it may not enter the fallopian tube, sperm may not be capable of reach the egg, fertilization may founder to occur, transport of the zygote may be disturbed, or implantation fail. It is increasingly recognized that egg ability is of critical importance and women of advanced caring age have eggs of reduced dimensions for normal and successful fertilization.
Self swearing is the major contributor.
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