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Acral Mutilation Syndrome
Addisons Disease
Bloat / Torsion
Canine Sprue
Cleft Lip / Palate
Contact Dermatitis
Corneal Dystrophy
Degenerative Myelopathy
Elbow Dysplasia
GlycogenStorage Disease
GSD Foot Pad Syndrome
Hip Dysplasia
Hypertrophic Osteodystrophy
Idiopathic Canine Colitis
Idiopathic Onychomadesis
Imperfect Dentition
Keratoconjunctivitis Sicca
Mitral Valve Defect
Non-fusion of the Anconeus
Osteochondritis Dissecans
Pancreatic Hypoplasia
Patent Ductus Arteriosis
Pemphigus Vulgaris
Pemphigus Erythematosus
Perianal Fistula
Pulmonic Stenosis
Premature Closure Ulna
S.I. Bacterial Overgrowth Syndrome
Sebaceous Adenitis
Selective IgA Deficiency
Spina Bifida
Symetrical Lupoid Onychodystrophy
Systemic Lupus Erythematosus
Tricuspid Dysplasia
Umbilical Hernia



  Library of Diseases


The following diseases and defects were reported by Shiloh Shepherd owners and included in our last breed-wide health survey, but this doesn't necessarily mean that they are the only diseases that our dogs could carry.


If your dog has a disease or defect that's not listed we also need to know about it, please fill out our Survey and  give us that information also.  We're in the process of adding pages to this site where you'll be able to get information about all the diseases and defects listed on the table below.  Eventually you'll be able to click on the defect name to see a definition of the disease as well as additional links to other websites containing more information.

Disease (or Defect) Name Age of Onset

Mode of Inheritance

Defect Frequency 0/100

Guesstimated Carrier Frequency

Acral Mutilation Syndrome  (NEW 8/04) Varies Und 0.6 14.2
Addison's Disease  (NEW 6/04) < 5 yrs. Und 0.3 10.2
Aggression  (NEW 8/04) < 3 yrs. Und 1.4 20.8
Bloat / Torsion  (NEW 02/08) < 7 yrs. Und 3.6 30.6
Canine Sprue (NEW 7/04) < 9 yrs. Und 0.6 14.2
Cataracts  (NEW 4/04) < 3 yrs. R 0.3 10.2
Cleft Lip / Palate  (NEW 6/04) Birth Poly/Und 0.3 10.2
Contact Dermatitis  (NEW 7/04) < 2 yrs. Und 0.6 14.2
Corneal Dystrophy  (NEW 7/04) Varies  Und 0.3 10.2
Cryptorchidism (NEW 7/04) < 3 mos. R/Und 1.1  18.2
Demodicosis  (NEW 4/04) < 1 yr. Und 3.3 29.6
Degenerative Myelopathy  (NEW 5/04) 5-14 yrs.
(usually 8-9)
Und 0.3 10.2
Elbow Dysplasia  (NEW 10/04) . . . .
Epilepsy  (NEW 2/04) > 1 yr. R/Und 0.3 10.2
Glycogen Storage Disease  (NEW 8/04) < 12 mos. R 0.3 10.2
GSD Foot Pad Syndrome  (NEW 8/04) < 11 mos. Und 0.3 10.2
Hip Dysplasia < 2 yrs. Poly 11.2 44.2
Hypertrophic Osteodystrophy  (NEW 10/04) 8 mos. Und 0.6 14.2
Hypothyroidism (autoimmune thyroiditis)  (NEW 5/04) < 8 yrs. R 0.6 14.2
Idiopathic Canine Colitis  (NEW 6/04) < 8 yrs. Und 3.1 29.5
Idiopathic Onychomadesis  (NEW 10/04) Birth Und 0.3 10.2
Imperfect Dentition (NEW 7/04) < 5 mos. R/Und 3.7 30.8
Keratoconjunctivitis Sicca  (NEW 7/04) < 1 yr. Und 0.6 14.2
Megaesophagus  (NEW 4/04) < 6 mos. Und 0.6 14.2
Mitral Valve Defect  (NEW 8/04) < 1 yr. Und 0.3 10.2
Non-fusion of the Anconeus (UAP)  (NEW 10/04) < 1 yr. Und 0.3 10.2
OCD (FCP / OCD)  (NEW 10/04) < 1 yr. Poly 0.3 10.2
Osteochondritis Dissecans (OCD) (NEW 0/04) < 1 yr. Und 0.3 10.2
Overshot < 1 yr. R/Und 3.7 30.8
Pancreatic Hypoplasia  (NEW 7/04) < 1 yr. R 6.1 36.5
Pannus (NEW 8/12)
Panosteitis (Pano) < 18 mos Und 13.8 46.6
Patent Ductus Arteriosis  (NEW 8/04) Birth Poly 0.6 14.2
Pemphigus Vulgaris  (NEW 8/04) < 2 yrs. Und 0.3 10.2
Pemphigus Erythematosus  (NEW 8/04) > 4 yrs. Und 0.3 10.2
Perianal Fistula (NEW 4/04) < 8 yrs. Und 0.6 14.2
Premature Closure Ulna  (NEW 10/04) < 1 yr. R 0.3 10.2
Pulmonic Stenosis  (NEW 4/04) < 1 yr. Poly 1.4 14.2
S.I. Bacterial Overgrowth Syndrome  (NEW 7/04) < 1 yr. variable Und 7.9 40.3
Sebaceous Adenitis (SA)  (NEW 7/04) < 1 yr. R/Und 0.3 10.2
Selective IgA Deficiency  (NEW 7/04) Birth Und 0.3 10.2
Spina Bifida  (NEW 8/04) Birth Und 0.3 10.2
Spinal Muscular Atrophy  (NEW 8/04) < 13 mos. Und 0.3 10.2
Subaortic Stenosis < 1 yr. Poly 1.4 20.8
Symmetrical Lupoid Onychodystrophy  (NEW 8/04) < 8 yrs. Und 0.3 10.2
Systemic Lupus Erythematosus  (NEW 8/04) < 9 yrs. Und 0.3 10.2
Tricuspid Dysplasia  (NEW 8/04) N/A N/A N/A N/A
Umbilical Hernia (NEW 4/04) < 6 mos. R/Poly 7.0 38.4
Undershot (NEW 7/04) < 1 yr. Poly 0.3 10.2
Uroliths (Struvite) (NEW 4/04) < 9 yrs. Und 0.3 10.2

Some definitions to help you understand what this table is showing...

Age of Onset - The dog's age at the time the disease is noticed.

Mode of Inheritance - The method by which a trait is inherited. 


R - Recessive.  A matched pair of genes (one from each parent) must be present in order for the dog to actually have a disease or defect.  If the dog only has one of the genes, it will not have the disease, but could pass that gene on to future generations.


Poly - Polygenic, meaning that more than one gene is involved in producing the phenotype.


Und - Undetermined, meaning that the method by which the trait or disease is inherited isn't known at this time.

Defect Frequency - The number of dogs reported in the last health survey that were reported to have each of the listed defects or diseases.

Guesstimated Carrier Frequency - A "guesstimate" of the percentage of dogs that are carriers of a given defect or disease.  (Please keep in mind though, that no matter how hard we try to get ALL Shiloh owners to submit data on their dogs, it's still difficult to get people who have HEALTHY dogs to fill in the survey on a regular basis.  The folks with affected dogs are most often the ones that submit data, those with healthy dogs don't bother because their dogs are healthy...  So the carrier frequency percentages listed above are often much higher than what the affected population really is.)

To learn more about the methodology used on our health survey, as well as 
the terminology used here in this webpage, please read 
"Control of Canine Genetic Diseases" by Dr. George A. Padgett DVM

We owe a special debt of thanks to Dr. Padgett for working with Tina Barber 
and the ISSR registered Shiloh Shepherd breeders, and for the seminar
at Homecoming 2001 where he presented his findings from the results of the 
Shiloh Shepherd Health Survey 2000.


Dedicated to improving the health of ISSR Shiloh Shepherds.


Copyright © 1998 - 2009. Shiloh Shepherd Dog™ Club of America.
All rights reserved. Revised: January 2008

The information on this website was written by ISSR breeders and other concerned individuals, however we are are NOT veterinarians. This information is being provided as a general overview, from information we were able to find about each disease through our own research. These summaries are not intended to be relied upon as medical or veterinary advice, nor do we consider ourselves experts in the veterinary field or in any of these conditions. While we do our best to provide the most up to date information, new research is constantly being done on these diseases. We recommend that you do further study and talk to your veterinarian on any topics you see here, as we cannot guarantee that the information posted here is the most current information available.  This site was originally designed and maintained by Debbie Knatz.