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Inability to conceive or induce conception. Of all
cases of infertility, 35% may be attributed to the male and 55% to the
female. In much of the world an estimated 6 per cent of couples are
involuntarily childless, excepting Africa, where the proportion is
about 10 per cent, and the Middle East and
Latin America
, where the proportion is about 3 per cent. Investigating and treating
infertility is complex and costly and is largely confined to wealthy
industrialized countries.
Symptoms
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they
have not conceived after 12 months of unprotected intercourse, or
after 6 months if the woman is over 35 years of age. The reduced
duration for women over 35 is because there is a rapid decline in
fertility after this age and help should be sought sooner.
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there
is incapability to carry a pregnancy to term.
The
cause of increasing rates of infertility
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the
postponement of pregnancy:
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Adverse
effects of increasing age on reproductive capacity include decreased
conception rates and increased pregnancy losses.
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The
increasing incidence of pelvic inflammatory disease is also thought to
be a major cause.
There
are fertility problems with both the man and the woman
The
male contribution to fertilization and the establishment of pregnancy
is the sperm. Sperm are small cells that carry the father's genetic
material. Male infertility can be caused by a number of different
characteristics of the sperm. To check for these characteristics, a
sample of semen is obtained and examined. Four basic characteristics
are usually evaluated:
·
Sperm count refers to the number of sperm present in a
semen sample. The normal number of sperm present in just one
milliliter (ml) of semen is over 20 million. An individual with only
20 million sperm per ml of semen is considered subfertile; an
individual with less than 5 million sperm per ml of semen is
considered infertile.
·
Sperm are also examined to see how healthy they swim
and to be sure that most have normal structure.
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Not all sperm within a specimen of semen will be
perfectly normal. Some may be immature, and some may have
abnormalities of the head or tail. A normal semen sample will contain
no more than 25% abnormal forms of sperm.
·
Volume of the semen sample is significant. An unusual
amount of semen could affect the ability of the sperm to successfully
fertilize an ovum.
The
female makes many contributions to fertilization and the establishment
of pregnancy. The ovum is the cell that carries the mother's genetic
material. These ova develop within the ovaries. Once a month, a single
mature ovum is produced, and leaves the ovary in a process called
ovulation. This ovum enters a tube leading to the uterus. The ovum
needs to meet up with the sperm in the fallopian tube if fertilization
is to occur.
The
first step in diagnosing ovulatory problems is to make sure that an
ovum is being produced each month. Ovulation is dependent on the
timely secretion of the two gonadotropic hormones from the pituitary
gland, follicle-stimulating hormone (FSH) and luteinizing hormone
(LH). Gonadotropic hormone release can be impeded by certain
medications and by many disease states, including stress, anorexia
nervosa, weight loss, and thyroid disease.
- Pelvic
adhesions and endometriosis
Pelvic
adhesions cause infertility by blocking the fallopian tubes and
preventing the sperm from reaching the egg. These scars can be the
result of past infections, such as pelvic inflammatory disease, or
infections following abortions or prior births. Previous abdominal
surgeries can also leave behind scarring. Endometriosis may lead to
pelvic adhesions. Endometriosis is the abnormal location of uterine
tissue outside of the uterus. This leads to irritation within the
pelvis around the site of this abnormal tissue and bleeding, and may
cause scarring.
The
cervix is the opening from the vagina into the uterus through which
the sperm must pass. Mucus produced by the cervix helps to transport
the sperm into the uterus. Injury to the cervix or scarring of the
cervix after surgery or infection can result in a smaller than normal
cervical opening, making it difficult for the sperm to enter. Injury
or infection can also decrease the number of glands in the cervix,
leading to a smaller amount of cervical mucus.
Cervical
mucus can be examined under a microscope to diagnose whether cervical
factors are contributing to infertility. This procedure is called a
post-coital test.
Treatment
The
treatment for infertility usually involves invasive and, expensive
procedures. There are many alternative treatments available that can
increase the chance of conception. Some have been proven effective in
clinical studies.
General
measures to increase fertility include:
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monitoring
ovulation
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timing
intercourse
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quitting
smoking
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quitting
excessive drinking
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quitting
drug use
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to
improve sperm quality, men can wear boxer shorts instead of briefs.
Both
men and women can increase fertility by:
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eating
a well-balanced diet
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good
food choices include legumes (especially soy)
·
dark-colored
vegetables
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fruits,
seeds, nuts
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good
quality protein including meat, fish, and eggs
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Some
people think that refined sugar, processed cheeses, foods made with
white flour, and chemical preservatives should be avoided
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enough
sleep is also important
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