Work related aspects of inguinal hernia: a literature review.
BACKGROUND
There is a traditional belief that that an inguinal hernia can be the result of increased intra-abdominal pressure (IAP) and therefore the development of a hernia may be attributed to single strenuous or recurrent strenuous events. As a result of this, litigation in this area is frequent.


METHODS
Medline was searched for English language publications using the keywords of 'hernia' or 'hernia AND recurrence' combined with 'work related', 'physical activity' and 'intra abdominal pressure'. The reference lists of appropriate papers identified on the original search were also checked to identify all related publications.


RESULTS
The search revealed 268 papers of which 59 were identified as appropriate to the subject of this review. Although publications in this area are scarce, from the literature available to date, there is no evidence to support the idea that single or recurrent strenuous events or early return to work related activity should result in the formation or recurrence of an inguinal hernia.


CONCLUSIONS
Although immediate pain at the time of an intensive or recurrent activity followed by a new diagnosis of a hernia supports a link between the activity and the hernia occurrence, it is likely that a congenital or acquired weakness in the connective tissue or muscles of the patient meant that hernia occurrence was almost inevitable. This may have significant implications regarding 'work related' hernia and its associated litigation.
Hendry
P O
PO
Department of Surgery, University of Edinburgh, Royal Infirmary, Edinburgh. paul.hendry@ed.ac.uk
Paterson-Brown
S
S
de Beaux
A
A
D046449:Hernia, Abdominal / Q000453:epidemiology; D006552:Hernia, Inguinal / Q000453:epidemiology* / Q000503:physiopathology; D006801:Humans; D009784:Occupational Diseases / Q000453:epidemiology* / Q000503:physiopathology; D011312:Pressure; D012008:Recurrence