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Oligospermia MeSH Descriptor Data 2025


MeSH Heading
Oligospermia
Tree Number(s)
C12.100.500.430.508
C12.100.750.700.508
C12.200.294.430.508
Unique ID
D009845
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D009845
Scope Note
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.
Entry Term(s)
Cryptospermia
Cryptozoospermia
Hypospermatogenesis
Low Sperm Count
Oligoasthenoteratozoospermia
Oligozoospermia
Previous Indexing
Spermatozoa (1966-1974)
Public MeSH Note
75
History Note
75
Date Established
1975/09/01
Date of Entry
1974/11/11
Revision Date
2022/04/13
Oligospermia Preferred
Cryptozoospermia Narrower
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