Heartworm Disease, Canine - contd.
Coughing from the lung damage, jaundice from liver damage, and weakness from damage to other organs may develop. Clinical signs include coughing, exercise intolerance, weakness, difficulty breathing, and fainting following exercise, if the dog is able to exercise at all. Eventually, congestive heart failure can develop, resulting in the backup of fluid within the abdomen and under the skin of the rear legs. In severe cases, sudden death can occur following exercise.
