Signs, Prevention, and Veterinary Care

Symptoms of heartworm disease in cats can vary widely, ranging from mild respiratory issues to severe complications affecting the lungs and heart. Many infected cats show signs similar to asthma, while others may appear healthy until a sudden crisis occurs. Year-round heartworm prevention is the most effective way to protect cats, including those that live exclusively indoors, since mosquitoes can easily enter homes. Regular veterinary examinations and preventive care can help reduce the risk of infection and support long-term feline health.