MeSH Browser

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

Allowable Qualifiers: blood (BL)

cerebrospinal fluid (CF)

chemically induced (CI)

classification (CL)

complications (CO)

diagnosis (DI)

diagnostic imaging (DG)

diet therapy (DH)

drug therapy (DT)

economics (EC)

embryology (EM)

enzymology (EN)

epidemiology (EP)

ethnology (EH)

etiology (ET)

genetics (GE)

history (HI)

immunology (IM)

metabolism (ME)

microbiology (MI)

mortality (MO)

nursing (NU)

parasitology (PS)

pathology (PA)

physiopathology (PP)

prevention & control (PC)

psychology (PX)

radiotherapy (RT)

rehabilitation (RH)

surgery (SU)

therapy (TH)

urine (UR)

veterinary (VE)

virology (VI)

Concept UI: M0015283
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.
Terms: Oligospermia Preferred Term
Term UI T029203
Date01/01/1999
LexicalTag NON
ThesaurusID NLM (1975); Oligoasthenoteratozoospermia
Term UI T000900914
Date05/12/2016
LexicalTag NON
ThesaurusID NLM (2017); Oligozoospermia
Term UI T652512
Date09/21/2005
LexicalTag NON
ThesaurusID NLM (2007); Low Sperm Count
Term UI T674248
Date05/22/2006
LexicalTag NON
ThesaurusID NLM (2007); Hypospermatogenesis
Term UI T811781
Date11/15/2011
LexicalTag NON
ThesaurusID OMIM (2013)

Oligospermia MeSH Descriptor Data 2025