Grey Cataract	Mostly caused by diabetes, which is either genetical, or caused by feeding degu the wrong food.	Milky-looking eyes.	Do not breed related degus. Proper nutrition is essential.	None. However, proper nutrition can manage diabetes, and degus can live well with poor sight.
Diabetes	Too much sugar in food.	May drink and urinate more. May also have cataracts.	Do not feed a lot of sugary foods.	None. However, proper nutrition can manage diabetes.
Tumors	Lowered immune system.	Only visible if on surface of body.	Occasionally add soya products to food.	Operation can save degus life.
Liver Problems	Unhealth, fatty foods.	Large weight change.	Proper nutrition is essential.	Proper nutrition may reverse symptoms.
Parasites	Contact with other animals or from hay.	Scratch often. May have a bald spot.		Clean cage thoroughly. Ask vet what products are safe to use on rodents.
Cold		Laboured breathing.		Take to vet for anti-biotics.
Injury	Fight with other degu. Fall from high place.	Cuts or abrasions.		Usually heals within a few days. If not, or if it wound looks infected, take degu to vet.
Broken Leg	Bad jump or fall from high place.	Degu avoids using injured leg.		Usually heals on its own within a month. Can not be casted, as leg could die.
Diarrhoea	Too much fresh fruit.	Liquid poop as opposed to hard pellet poop.	Remove fresh fruit and feed only hay and pellets.	If diarrhoea lasts more than a day, take degu to a vet.