Health Concerns

The Australian Stumpy Tail Cattle Dog is a relatively healthy breed with few genetic disorders. Those disorders that are present generally occur fairly rarely. This is due, in no small part, to the diligence of breeders who are determined to keep the breed healthy and true to its heritage. While the breed is relatively free of genetic disorders, the following defects have been associated with the ASTCD: 

Deafness

LSU articles on Deafness in Dogs and Cats by George Strain: www.lsu.edu/deafness/deaf.htm 
Deafness inheritance study in the ACD by Sue Summerlad (Univ Queensland):
http://espace.library.uq.edu.au/view/UQ:346672 
Genetics of Deafness in the Australian Stumpy Tail Cattle Dog:   http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0013364 

Hip Dysplasia 

Orthopedic Foundation for Animals: www.offa.org/ 

Cleft Palate    

PetMD article on cleft palate in dogs: https://www.petmd.com/dog/conditions/mouth/c_dg_cleft_palate%20

Spina Bifida    

Vetstreet article on spina bifida in dogs: http://www.vetstreet.com/care/spina-bifida 

prcd-PRA (Inherited Blindness) in the ACD and ASTCD

www.optigen.com/opt9_test_pra_acd.html 

Cryptorchidism (Undescended Testicles) 

https://www.petmd.com/dog/conditions/reproductive/c_multi_cryptorchidism

Incorrect and Missing Dentition (Teeth)

Merck Veterinary Manual: https://www.merckvetmanual.com/digestive-system/congenital-and-inherited-anomalies-of-the-digestive-system/congenital-and-inherited-anomalies-of-the-teeth