Editing Trichuriasis (section)

==Diagnosis==
A stool ova and parasites exam reveals the presence of typical whipworm eggs. Typically, the Kato-Katz thick-smear technique is used for identification of the ''Trichuris trichiura'' eggs in the stool sample. Trichuria eggs often appear larger and more swollen on Kato-Katz preparation compared to when using other techniques.<ref>{{cite book|url=https://www.who.int/intestinal_worms/resources/9789241515344/en/|archive-url=https://web.archive.org/web/20191018145433/https://www.who.int/intestinal_worms/resources/9789241515344/en/|archive-date=October 18, 2019|author=Dr A. Montresor|title=Bench Aids for the diagnosis of intestinal parasites, Second edition|date=2 September 2019|publisher=World Health Organization |isbn=978-92-4-151534-4}}</ref>

Although colonoscopy is not typically used for diagnosis, as the adult worms can be overlooked, especially with an imperfect colon, there have been reported cases in which colonoscopy has revealed adult worms. Colonoscopy can directly diagnose trichuriasis by identification of the threadlike form of worms with an attenuated, whip-like end.  Colonoscopy is a useful diagnostic tool, especially in patients infected with only a few male worms and with no eggs presenting in the stool sample.<ref>{{Cite journal |last1=Ok |first1=Kyung-Sun |last2=Kim |first2=You-Sun |last3=Song |first3=Jung-Hoon |last4=Lee |first4=Jin-Ho |last5=Ryu |first5=Soo-Hyung |last6=Lee |first6=Jung-Hwan |last7=Moon |first7=Jeong-Seop |last8=Whang |first8=Dong-Hee |last9=Lee |first9=Hye-Kyung |date=September 2009 |title=Trichuris trichiura Infection Diagnosed by Colonoscopy: Case Reports and Review of Literature  |journal=[[The Korean Journal of Parasitology]] |volume=47 |issue=3 |pages=275–280 |doi=10.3347/kjp.2009.47.3.275 |issn=0023-4001 |pmc=2735694 |pmid=19724702}}</ref>

Trichuriasis can be diagnosed when ''T. trichiura'' eggs are detected in stool examination.  Eggs will appear barrel-shaped and un[[embryonated]], having bipolar plugs and a smooth shell.<ref name="Trichuris trichiura">{{cite web |url= http://www.wrongdiagnosis.com/medical/trichuris_trichiura.htm |title= Trichuris trichiura |publisher= WrongDiagnosis.com |date= 2009-05-06 |access-date= 2009-05-19 |url-status= live |archive-url= https://web.archive.org/web/20040619123103/http://www.wrongdiagnosis.com/medical/trichuris_trichiura.htm |archive-date= 2004-06-19 }}</ref> Rectal prolapse can be diagnosed easily using [[defecating proctogram]] and is one of many methods for imaging the parasitic infection. Sigmoidoscopies show characteristic white bodies of adult worms hanging from inflamed mucosa ("coconut cake rectum").<ref>{{Cite book |last1=Viswanath |first1=A |last2=Yarrarapu |first2=SNS |last3=Williams |first3=M |date=26 June 2018 |title=Trichuris trichiura Infection |pmid=29939620}}</ref>