Article in English: Worm infections tend to get worse the longer they are left untreated.  An infection with a great number of adult worms, known as a “heavy” infection, can have adverse effects on a dog's overall well-being, so identifying worms before the infection becomes “heavy” is the best approach.  Some canine worm infections can cause gastrointestinal illnesses such as diarrhea. Some worm infections can ultimately lead to a dog's death, particularly with heart or lungworms. Particularly if you live in a high-risk area with many mosquitoes, you should give your dog a monthly heartworm preventative.  Heartworm preventatives require a prescription.  Most vets require a negative heartworm test to write a heartworm preventative prescription. Many heartworm preventatives are meat-flavored and chewable, making them easier to administer. Because some worms are transferred by fleas, keeping your dog free of fleas with a regular flea treatment can help him stay free of worms as well.  Some companies make a combination heartworm and flea treatment in one chewable pill. It is also possible to administer a monthly topical flea treatment.  This is usually squeezed onto the dog's scruff, at the back of his neck. Ensuring that your dog stays away from environments that are most conducive to worms can help eliminate the need for de-worming.  Keep your dog away from warm, grassy areas shared with other dogs who have not been de-wormed. Do not let your dog come into contact with wild or prey animals. Avoid warm, humid climates that have high populations of bugs such as fleas or mosquitoes. Do not let your dog eat or rub themselves in the feces of other dogs or wild animals. If your dog has worms, you may need to administer a de-wormer.  A precise worming protocol depends on the individual pet's risk factors, and is best discussed with your veterinarian.   Most de-wormer is a powdery substance that can be mixed into the dog's food or another vehicle such as plain yogurt (consult your vet before feeding your dog food made for humans). Most...

Summary in Vietnamese:
Xác định và điều trị giun sán nhanh chóng. Cho chó uống thuốc ngừa giun chỉ hàng tháng. Giữ cho chó sạch chấy rận. Hạn chế cho chó tiếp xúc với môi trường gây hại. Cho chó uống thuốc tẩy giun nếu cần. Đưa chó đến bác sĩ thú y khám đều đặn.