II. Causes

  1. See Epididymitis
  2. Mumps
    1. Orchitis occurs in 20-35% of mumps Parotitis cases
    2. Bilateral in 15% of cases
  3. Rubella
  4. Epididymitis complication
  5. Tuberculosis
  6. Syphilis
  7. Granulomatous Orchitis
    1. Autoimmune response to spermatazoa in older men

III. Symptoms

  1. Sudden onset of Testicular Pain
  2. High fever
  3. Nausea or Vomiting

IV. Signs

  1. Enlarged Testis
  2. Indurated and tender on testicular palpation

V. Labs: Urinalysis

VI. Management

  1. Relative rest
  2. Scrotal support
  3. Local Ice Therapy
  4. NSAIDs
  5. Specific antimicrobial therapy where indicated
    1. See Epididymitis

VII. Prognosis

  1. Mumps Orchitis confers 4% risk of sterility
  2. Testes may become atrophic
  3. Androgenic function usually maintained

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Related Studies

Ontology: Orchitis (C0029191)

Definition (NCI) Inflammation of one or both testes due to viral or bacterial infections. Signs and symptoms include enlargement or tenderness of the affected testis, inguinal lymphadenopathy, blood in the semen, and pain during urination, intercourse, or ejaculation.
Definition (CSP) inflammation of one or both testis.
Definition (MSH) Inflammation of a TESTIS. It has many features of EPIDIDYMITIS, such as swollen SCROTUM; PAIN; PYURIA; and FEVER. It is usually related to infections in the URINARY TRACT, which likely spread to the EPIDIDYMIS and then the TESTIS through either the VAS DEFERENS or the lymphatics of the SPERMATIC CORD.
Concepts Pathologic Function (T046)
MSH D009920
ICD10 N45.2
SnomedCT 367112009, 197984006, 297229006, 197987004, 197990005, 29077001, 274718005
English Orchitides, Orchitis, ORCHITIS, Orchitis NOS, Orchitis unspecified, orchitis (diagnosis), orchitis, Orchitis [Disease/Finding], inflammation of testis, testi inflammation, inflammation testis, inflammation testes, Orchitis unspecified (disorder), Orchitis NOS (disorder), Inflammation of testis (disorder), Testicular inflammation, Testiculitis, Non-specific orchitis, Orchitis (disorder), didymytis, inflammation; testis, testis; inflammation, Non-specific orchitis, NOS, Orchitis, NOS, Orchitis [Ambiguous], Inflammation of testis, Orchititis, Inflammation;testes, inflammation of the testes, testes inflammation
French ORCHITE, Inflammation testiculaire, Orchite SAI, Orchite
Portuguese ORQUITE, Orquite NE, Inflamação testicular, Orquite
Spanish ORQUITIS, Orquitis NEOM, Inflamación testicular, orquitis, SAI, orquitis, SAI (trastorno), orquitis no especificada, orquitis (concepto no activo), orquitis no especificada (trastorno), inflamación de testículo, inflamación de testículo (trastorno), orquitis (trastorno), orquitis inespecífica, orquitis, Orquitis
Dutch orchitis NAO, testikelontsteking, ontsteking; testis, testis; ontsteking, orchitis, Orchitis
German Hodenentzuendung, Orchitis NNB, HODENENTZUENDUNG, Orchitis, Hodenentzündung
Italian Infiammazione del testicolo, Orchite NAS, Orchite
Japanese 精巣炎, 精巣炎NOS, 精巣の炎症, セイソウエン, セイソウノエンショウ, セイソウエンNOS
Swedish Testikelinflammation
Czech orchitida, Orchitida, Orchitida NOS, Zánět varlete, zánět varlete, varlata - zánět
Finnish Kivestulehdus
Polish Zapalenie jądra
Hungarian orchitis k.m.n., Testicularis gyulladás, Orchitis
Norwegian Testikkelbetennelse, Orkitt

Ontology: Acute orchitis (C0268958)

Concepts Disease or Syndrome (T047)
SnomedCT 45082006
English Acute orchitis, Acute orchitis (disorder)
Spanish orquitis aguda (trastorno), orquitis aguda