Definition - What does Hypospermia mean?
Hypospermia is an abnormally low amount of ejaculate, or semen, expelled per ejaculation. The typical volume of semen per ejaculation is between 1.5 and 5 ml of ejaculate fluid. According to the World Health Organization (WHO) men with hypospermia expel less than 1.5 ml.
In order to conceive, sperm relies on a standard amount of semen to aid in vacating the male body and entering the female body. As a result, this condition can be problematic for fertility.
Hypospermia may also be called a low semen production.
FertilitySmarts explains Hypospermia
Once it has been produced in the testes, sperm must travel through a series of male reproductive organs before being expelled from the penis. Ejaculate is composed of a variety of fluids gathered throughout the route.
The most substantial fluid is seminal fluid, contributed by the seminal glands, and comprising over 80% of ejaculate fluid. The remaining fluid is provided by the epididymis, prostate, and other glands.
Hypospermia can be caused by:
- Retrograde ejaculation, when the semen empties into the bladder as opposed to being expelled through the urethra and out the penis. One study suggests this account for around 40.5% of patients with hypospermia.
- Anejaculation, total lack of ejaculation
- Ejaculatory duct obstruction (EDO)
- Congenital defects, such as lack of vas deferens or seminal vesicles
- Blockage of seminal vesicles
- Hormonal imbalance, causing hypogonadism, or abnormally low testosterone levels
- Excessive ejaculation, caused by overly frequent sexual activity or intercourse
Treatment of hypospermia is based on the specific cause and may involve medication changes, reparative surgery, or lifestyle changes.
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- Prevalence of retrograde ejaculation in infertility associated to hypospermia. (2011).