Klinefelter's syndrome

human chromosomal condition
MedicalCondition developmental_defect_during_embryogenesis Q207133
Klinefelter's syndrome
User:Nami-ja · Public Domain · Wikimedia
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Klinefelter's syndrome

Summary

Klinefelter's syndrome is a developmental defect during embryogenesis[1]. It ranks in the top 0.97% of developmental_defect_during_embryogenesis entities by monthly Wikipedia readership (1,719 views/month, #3 of 308).[2]

Key Facts

  • Klinefelter's syndrome's instance of is recorded as developmental defect during embryogenesis[3].
  • Klinefelter's syndrome's instance of is recorded as class of disease[4].
  • Harry Klinefelter is named after Klinefelter's syndrome[5].
  • Klinefelter's syndrome is a type of chromosomal disease[6].
  • Klinefelter's syndrome is a type of sex chromosome disorder[7].
  • Klinefelter's syndrome is a type of X chromosome number anomaly with male phenotype[8].
  • Klinefelter's syndrome is a type of male infertility due to gonadal dysgenesis[9].
  • Klinefelter's syndrome is a type of sex chromosome disorder of sex development[10].
  • Klinefelter's syndrome is a type of chromosomal anomaly with epilepsy as a major feature[11].
  • Klinefelter's syndrome is a type of chromosomal duplication syndrome[12].
  • Klinefelter's syndrome is a type of disease[13].
  • Klinefelter's syndrome is a type of intersex variation[14].
  • Klinefelter's syndrome's Commons category is recorded as Klinefelter's syndrome[15].
  • Klinefelter's syndrome's time of discovery or invention is recorded as 1942[16].
  • Klinefelter's syndrome's symptoms and signs is recorded as azoospermia[17].
  • Klinefelter's syndrome's symptoms and signs is recorded as hypogonadism[18].
  • Klinefelter's syndrome's symptoms and signs is recorded as gynecomastia[19].
  • Klinefelter's syndrome's symptoms and signs is recorded as obesity[20].
  • Klinefelter's syndrome's symptoms and signs is recorded as osteoporosis[21].
  • Klinefelter's syndrome's symptoms and signs is recorded as muscle weakness[22].
  • Klinefelter's syndrome's symptoms and signs is recorded as dyslexia[23].
  • Klinefelter's syndrome's ICD-9-CM is recorded as 758.7[24].
  • Klinefelter's syndrome's NCI Thesaurus ID is recorded as C34752[25].
  • Klinefelter's syndrome's different from is recorded as XYY syndrome[26].
  • Klinefelter's syndrome's health specialty is recorded as medical genetics[27].

Why It Matters

Klinefelter's syndrome ranks in the top 0.97% of developmental_defect_during_embryogenesis entities by monthly Wikipedia readership (1,719 views/month, #3 of 308).[2] It has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.[28] It is known by 62 alternative names across languages and contexts.[29]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] . Monarch Disease Ontology release 2018-06-29. Retrieved . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . Disease Ontology. Retrieved . wikidata.org.
  5. [7] . A case of human intersexuality having a possible XXY sex-determining mechanism. wikidata.org.
  6. [8] . Monarch Disease Ontology release 2018-06-29. Retrieved . wikidata.org.
  7. [9] . Monarch Disease Ontology release 2018-06-29. Retrieved . wikidata.org.
  8. [10] . Monarch Disease Ontology release 2018-06-29. Retrieved . wikidata.org.
  9. [11] . Monarch Disease Ontology release 2018-06-29. Retrieved . wikidata.org.
  10. [12] . Disease Ontology. Retrieved . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . wikidata.org.
  22. [24] . Disease Ontology. Retrieved . wikidata.org.
  23. [25] . Disease Ontology. Retrieved . wikidata.org.
  24. [26] . wikidata.org.
  25. [27] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] . Wikidata sitelinks. wikidata.org.
  3. [29] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Klinefelter's syndrome. Retrieved May 3, 2026, from https://4ort.xyz/entity/klinefelter-s-syndrome
MLA “Klinefelter's syndrome.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/klinefelter-s-syndrome.
BibTeX @misc{4ortxyz_klinefelter-s-syndrome_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Klinefelter's syndrome}}, year = {2026}, url = {https://4ort.xyz/entity/klinefelter-s-syndrome}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Klinefelter's syndrome — https://4ort.xyz/entity/klinefelter-s-syndrome (retrieved 2026-05-03)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 22d ago · Twofivesixbot bot · 2026-05-18 view diff on Wikidata ↗
    Instance of
    Named after Harry Klinefelter
    Health specialty medical genetics
    Subclass of
    + 9 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|6 */ [[Property:P2347]]: 21958, mv to monolingual text names on YSO statements"
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