The Great Dane can suffer from any hereditary disease found in any breed of dog and
these are many and varied, although not any way as numerous as those found in man!!
There are tests that can be done to predict the likelihood of a few of these conditions
by DNA testing, x-raying, ultra sound, ECG testing and eye examination to name a
few. Some are not discovered until an animal is used in a breeding program. If they
then manifest themselves then the animal and the off spring should not be bred from again.
The following have occurred regularly enough to be recognised as problems in Great Danes and these should be discussed with your vet and the breeder.