Yes, inguinal hernia is a potential SE with RP.  See the following
abstract...ron

Urology. 2007 Vol 69, issue 2, pp 326-329
Postoperative Inguinal Hernia After Radical Prostatectomy for Prostate
Cancer.

Abe T, Shinohara N, Harabayashi T, Sazawa A, Suzuki S, Kawarada Y,
Nonomura K.
Department of Urology, Hokkaido University Graduate School of
Medicine, Sapporo, Japan.

OBJECTIVES: To determine the incidence of inguinal hernia after
radical prostatectomy and compare it with the incidence in patients
with prostate cancer treated with radiotherapy. We also analyzed the
effect of potential risk factors for inguinal hernia after radical
prostatectomy.
METHODS: We investigated the medical records of 53, 43, and 74 men who
underwent open radical retropubic prostatectomy (RRP), laparoscopic
radical prostatectomy (LRP), or radiotherapy with or without
laparoscopic pelvic lymph node dissection, respectively, and evaluated
the respective incidence of inguinal hernia after these therapies. The
risk factors were analyzed using a Cox proportional hazards model.
RESULTS: The incidence of inguinal hernia was 17% (9 of 53), 14.0% (6
of 43), and 1.4% (1 of 74) in open RRP, LRP, and radiotherapy groups,
respectively. Multivariate Cox proportional hazards analysis
demonstrated that open RRP and LRP were significant risk factors for
the development of inguinal hernia.
CONCLUSIONS: Urologists should be aware that inguinal hernia is an
important postoperative complication of open RRP. More interestingly,
even LRP could promote the development of postoperative inguinal
hernia.

PMID: 17275071

Hi Paul,
Yes, it's more common than many uros acknowledge.
Here:
http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=Retrieve&db=PubMed&list_uids=11490256
"CONCLUSIONS: The incidence of inguinal hernia is clearly increased in
men who have undergone RRP. . . "

I was very concerned that I had one about 5 weeks post-RP. Hurt like a
very deep side ache, but halfway between my scar and groin. My surgeon
said no hernia, but TAKE IT EASY. I'd been pushing myself to walk a
lot every day & these abdominal muscles can take a long time to heal
properly. When they say no lifting, they mean it.
Z

Age 60 PSA: 4.8 pre-biopsy
4/5/07: Biopsy: Gleason: 3+3, Stage T1c
5/22/07: RRP, Pathology: Gleason 3+4, Stage T2c
Positive margin, both nerves spared, no lymph or s.v. involvement
6/4/07: Cath out, dry, no leaks.
7/05/07: 1st post-RP PSA: <.04

See:

http://palpable-prostate.blogspot.com/2007/02/inguinal-hernia-and-prostatectomy.html

---
The Palpable Prostate
http://palpable-prostate.blogspot.com

Thanks guys for the links, very informative!