Check for common signs like flea dirt, eggs and scratching pets to see if you have a flea problem
There are many species of fleas but in the U.S. it is cat and dog fleas that cause most problems, which is why it is always better to prevent fleas by taking some simple precautions.
Cat fleas are often unable to determine whether a host is suitable until it has been bitten. If it is deemed unsuitable, the flea soon drops off.
Adult Dog fleas feed on the blood of dogs and cats, and they occasionally bite humans.
It is a vector of the Dog Tapeworm, Dipylidium caninum, which can also affect humans.
Bird fleas can multiply enormously in hen houses, breeders, and other similar environments.