Diseases

Oligospermia

A condition of suboptimal concentration of SPERMATOZOA in the ejaculated SEMEN to ensure successful FERTILIZATION of an OVUM. In humans, oligospermia is defined as a sperm count below 20 million per milliliter semen.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A condition of suboptimal concentration of SPERMATOZOA in the ejaculated SEMEN to ensure successful FERTILIZATION of an OVUM. In humans, oligospermia is defined as a sperm count below 20 million per milliliter semen.

MeSH Record

Classification

Broader headings

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MeSH Record

See Also

MeSH Record

Synonyms

13 entry terms
  • Hypospermatogenesis
  • Low Sperm Count
  • Oligoasthenoteratozoospermia
  • Oligozoospermia
  • Hypospermatogeneses
  • Low Sperm Counts
  • Oligoasthenoteratozoospermias
  • Sperm Count, Low
  • Sperm Counts, Low
  • Cryptospermia
  • Cryptozoospermia
  • Cryptospermias
  • Cryptozoospermias

MeSH Record

Aspects Covered

34 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

History Note

75

MeSH Record

Previous Indexing

  • Spermatozoa (1966-1974)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Oligospermia. Medical Subject Headings (MeSH). 2026. Unique ID D009845. http://id.nlm.nih.gov/mesh/2026/D009845
  2. Oligospermia. In: Wikipedia. https://en.wikipedia.org/wiki/Oligospermia
  3. Oligospermia. In: Wikidata. https://www.wikidata.org/wiki/Q1876491