Editing Sciatica (section)

===Physical tests===
Generally, if a person reports the typical radiating pain in one leg, as well as one or more neurological indications of nerve root tension or neurological deficit, sciatica can be diagnosed.<ref name="pmid17585160" />

The most frequently used diagnostic test is the [[straight leg raise]] to produce [[Lasègue's sign]], which is considered positive if pain in the distribution of the sciatic nerve is reproduced with passive flexion of the straight leg between 30 and 70 degrees.<ref name="pmid15130982">{{cite journal | vauthors = Speed C | title = Low back pain | journal = BMJ | volume = 328 | issue = 7448 | pages = 1119–21 | date = May 2004 | pmid = 15130982 | pmc = 406328 | doi = 10.1136/bmj.328.7448.1119  }}</ref> While this test is positive in about 90% of people with sciatica, approximately 75% of people with a positive test do not have sciatica.<ref name=Valat2010/> Straight leg raising of the leg unaffected by sciatica may produce sciatica in the leg on the affected side; this is known as the Fajersztajn sign.<ref name=":2">{{Cite book |last1=Ropper |first1=Allan H. |last2=Samuels |first2= Martin A. |last3=Klein |first3=Joshua P. |year=2014 |chapter=Chapter 11. Pain in the Back, Neck, and Extremities |title=Adams and Victor's Principles of Neurology |url=https://accessmedicine.mhmedical.com/book.aspx?bookid=690 |edition=Tenth |location=New York |publisher=McGraw-Hill Education Medical |pages= |isbn=9780071794794 |oclc=857402060}}</ref> The presence of the Fajersztajn sign is a more specific finding for a herniated disc than Lasègue's sign.<ref name=":2" /> Maneuvers that increase intraspinal pressure, such as coughing, flexion of the neck, and bilateral compression of the [[jugular vein]]s, may transiently worsen sciatica pain.<ref name=":2" />