Synonyms for oligospermia or Related words with oligospermia
Examples of "oligospermia"
Sources usually classify
in 3 classes:
This intercourse advantage is even greater for men with
There currently are no effective medications to treat
, so other assisted reproductive technologies are used.
DBCP causes a dramatic decrease in male fertility, ranging from
(low sperm count) to azoospermia (lack of sperm).
The Low dose Estrogen Testosterone Combination Therapy may improve sperm count and motility in some men including severe
A review in 2013 came to the result that
and azoospermia are significantly associated with being overweight (odds ratio 1.1), obese (odds ratio 1.3) and morbidly obese (odds ratio 2.0), but the cause of this is unknown. It found no significant relation between
and being underweight.
2-Methoxyethanol is toxic to the bone marrow and testicles. Workers exposed to high levels are at risk for granulocytopenia, macrocytic anemia,
, and azoospermia.
Low sperm counts are often associated with decreased sperm motility and increased abnormal morphology, thus the terms "oligoasthenoteratozoospermia" or "
" can be used as a catch-all.
Low-dose estrogen and testosterone combination therapy may improve sperm count and motility in some men, including in men with severe
Azoospermia can be classified into three major types as listed. Many conditions listed may also cause various degrees of
rather than azoospermia.
Idiopathic azoospermia is where there is no known cause of the condition. It may be a result of multiple risk factors, such as age and weight. For example, a review in 2013 came to the result that
and azoospermia are significantly associated with being overweight (odds ratio 1.1), obese (odds ratio 1.3) and morbidly obese (odds ratio 2.0), but the cause of this is unknown. The review found no significant relation between
and being underweight.
Vasography may be indicated if there is severe
(few sperm) with a normal testis biopsy, high levels of sperm-bound antibodies, or low semen volume and poor sperm motility.
Ejaculatory duct obstruction may result in a complete lack of semen (aspermia) or a very low-volume semen (
) which may contain only the secretion of accessory prostate glands downstream to the orifice of the ejaculatory ducts.
Hypospermia is a condition in which a man has an unusually low ejaculate (or semen) volume, less than 1.5 ml. It is the logical opposite of hyperspermia. It should not be confused with
, which means low sperm count.
and oligozoospermia refer to semen with a low concentration of sperm and is a common finding in male infertility. Often semen with a decreased sperm concentration may also show significant abnormalities in sperm morphology and motility (technically oligoasthenoteratozoospermia). There has been interest in replacing the descriptive terms used in semen analysis with more quantitative information.
Genetic factors can cause pretesticular, testicular, and posttesticular azoospermia (or
) and include the following situations: The frequency of chromosomal abnormalities is inversely proportional to the semen count, thus males with azoospermia are at risk to have a 10-15% (other sources citing 15-20% incidence) abnormalities on karyotyping versus about <1 % in the fertile male population.
Another cause of aspermia is ejaculatory duct obstruction, which may result in a complete lack of or a very low-concentration semen (
), in which the semen contains only the secretion of accessory prostate glands downstream to the orifice of the ejaculatory ducts.
In addition, it is reported to be a cause for pelvic pain, especially shortly after ejaculation. In case of proven fertility but unresolved pelvic pain, even one or both partially obstructed ejaculatory ducts may be the origin of pelvic pain and
The diagnosis of oligozoospermia is based on one low count in a semen analysis performed on two occasions. For many decades sperm concentrations of less than 20 million sperm/ml were considered low or oligospermic, recently, however, the WHO reassessed sperm criteria and established a lower reference point, less than 15 million sperm/ml, consistent with the 5th percentile for fertile men. Sperm concentrations fluctuate and
may be temporary or permanent.
Normal ejaculate when a man is not drained from prior sex and is suitably aroused, is around 1.5-6 ml, although this varies greatly with mood, physical condition and sexual activity. Of this, around 1% by volume is sperm cells. Hypospermia would only usually be a factor in infertility if the two conditions (hypospermia and
) are combined. The U.S. based National Institutes of Health defines hypospermia as a semen volume lower than 2 mL on at least two semen analyses.
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