Dog disease can be examined by the dog ' s clinical symptoms and by the presence of an egg bladder in the faeces. The cysts of the ballworms are small in size and are of a micrometre class, so they cannot be observed through the naked eye and must use microscopes. In cases of depression, abated appetite, indigestion, wasting, anaemia, defecation, etc., it is suggested that the dog may have ballworm disease. It is recommended that they be sent to the hospital in time for confirmation, so as to avoid delays.
In addition, the spherical worms are mainly intestinal mucous membranes that attack dogs, causing extensive damage to intestinal skin cells and causing haemorrhagic enteritis and cell loss. As a result, some mildly infected dogs have mild fever, depression, reduced appetite, wasting and anaemia. If treatment is not provided in a timely manner and the condition is aggravated, there will be laxity or blood-borne faeces.