Is it normal for a dog to pull worms after being dewormed? What kind of worms are the white worms?

Jul 26,2025
6Min

The reason why dogs pull out worms after being dewormed

Generally, the effect will be effective within 24 hours. However, due to differences in the pet’s physique, the number of worm infections in the body, and the type of worm infection, the effect will take longer to appear. There is a difference. But why are there still bugs after giving deworming medicine?
1. Bugs still appear after the dog is dewormed. It may be that there are many parasites in the dog’s body and the deworming is not complete; during the deworming period, there are no Clean the stool in time to avoid reinfection; the dog goes out to play and is infected with parasites; the living environment and diet are unhygienic, and eating too much raw meat will cause the parasite to be reinfected.
2. Deworming will cause vomiting and diarrhea in 20% of cases. Some dogs already have bloody diarrhea. After deworming, the diarrhea will continue. Some dogs will not have diarrhea after deworming. The effect of the medicine is great, but diarrhea and bloody stools may also occur. For these two situations, don’t panic. Experienced friends should give the dog probiotics for conditioning at this time, which will help regulate the disordered flora caused by the side effects of anthelmintic drugs and play an antidiarrheal role.

White worms pulled out by dogs after deworming

Roundworms - beige, like a rubber band, parasitize in the intestines and absorb digested nutrients. You can tell whether you have roundworms in your stomach by checking your stool for eggs. Many female dogs are not dewormed before pregnancy, which leads to contamination of the puppies during pregnancy, resulting in worms in the intestines of the puppies after they are born. The worm body will be corroded by stomach acid if eaten, but the round worm egg package has a thick egg shell and will not be eliminated; when the puppy is sucking milk, it accidentally licks the female dog's feces containing worm eggs, and the worm eggs escape Stomach acid hatches into adult worms in the intestines. Most stray dogs outside and puppies from breeding places with poor hygiene have roundworms in their stomachs.

Lice - tiny white parasites that live on the roots of hair, often in dense clusters, making dogs thin; mostly occur on young stray dogs. At present, this kind of lice is very uncommon, and dogs infected by it are often very weak.

Measures to prevent dogs from being infected with parasites

1. Prevention - after removing lice and fleas from the body, immediately wear a suitable anti-insect collar for prevention. Do not trust advertisements and instructions too much. , each brand says that theirs is the best, with strong insect-repelling power and long-lasting effect. If this is true, the dog may only have half his life left, because the drug effect is too strong. Insect-proof collars usually cannot kill the insects, they can only drive them away or stun them. Generally, insect-proof rings containing chemical drugs have good effects in the first month. The so-called effect refers to the preventive effect of using drugs to remove the original insects before wearing them. The effect is halved in the second month of wearing, and usually the effect lasts for three months at most. Ultrasound collars are not only expensive, but the results may not be good, so there is no need to waste money.

2. Environmental cleanliness—— If the bugs are removed from the dog and the bug-proof collar is worn, but there are still bugs on the dog; this means that there are still bugs in the environment, and to completely eliminate them, excessive debris in the home must be cleaned. Accumulated dust is a favorite place for fleas; remove carpets, because carpets are similar to the fur on dogs, and fleas love them; change sofas, sheets, and blankets in the home, put away food and aquariums, close doors and windows, and keep people, Leave all the dogs and buy a powerful insecticide to spray. Spray it in the morning and let it sit for a whole day. The family members who come back first in the evening open the windows to ventilate the air, mop the floor, wipe dry, and wash the furniture. They don't let the dog back until the smell of the medicine disappears. Don't expect to find professional pest control personnel. Although they claim that the drugs they use are harmless to humans and animals, dogs and cats that are poisoned after disinfection often go to the hospital for treatment.

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