Some of the common
signs of worm infections are listed below, but these may also be symptoms of other illnesses.
Not exact matches
In both kittens and adult cats with small numbers
of worms, there may be no clinical
signs of infection.
In heavy
infections, adult
worms may invade the chambers
of the heart and cause symptoms including coughing, sluggishness and difficulty breathing, though some dogs may show no
signs at all.
Many dogs show little or no
sign of infection even after the
worms become adults.
A cat or dog with recent or mild heartworm
infections may show no
signs of illness; however, once the adult
worms have developed in the heart common symptoms can include fatigue, chronic coughing, vomiting, and weight loss.
Usually, there is no outward
signs of an
infection until the
worms start attacking the nervous system.
At first, an infected dog may show few if any
signs of infection; but, as the
worms grow and mature, they cause increasing damage.
According to the American Heartworm Society, a dog with a low number
of adult
worms present in the body that does not undergo strenuous exercise may never have apparent
signs of heartworm
infection.
Also, heartworms take months to develop and you likely won't notice any
signs until your fuzzy one needs serious veterinarian intervention and treatment — it takes approximately six months from the time
of initial
infection until detection as the test detects adult
worms.
Although it takes a number
of years before dogs show
signs of infection, once infected, it is a particularly deadly and nasty illness, with
worms that have grown up to 10 inches in length clogging the heart, causing severely infected dogs to die suddenly during exercise or excitement.