I believe many owners of pet dogs know that they need to do regular insect repellent for dogs, but how often do they do it for dogs? In addition to internal insect repellent, does it also need external insect repellent? What we know is that there are many kinds of parasites in dogs, such as Ascaris lumbricoides, whipworm and so on. Although some parasites may not cause parasitic diseases in dogs, they will have a serious impact on the growth and development of dogs over time. Most parasites have a growth cycle of no more than one month. For Ascaris lumbricoides, the shortest growth cycle is only three weeks, and this kind of parasites can be transmitted from the female dog to the dog. Therefore, for the owner, don’t think it’s all right to use insect repellent once, and be sure to do insect repellent once a month, To ensure the healthy growth of dogs. In addition to in vivo insect repellent, in vitro insect repellent for dogs is equally important. In most people’s cognition, they think that in vitro insect repellent is mainly to prevent fleas. In fact, there are lice, ticks, ear mites, etc. the growth cycle of these parasites outside dogs is also very short. Therefore, it can be seen that it is very necessary to use insect repellent once a month. We also have to be careful about the choice of insect repellents. Dogs have a developed sense of smell and are sensitive to smell, so we can choose some insect repellents with smells that dogs can accept, such as those with beef flavor, which will make dogs easier to accept. At the same time, we should cooperate with the cleaning work at home to ensure that the dog is in a clean and tidy environment, which can also prevent the growth of parasites to a certain extent. I hope all pet dog owners have a certain understanding of the internal and external insect repellent cycle of dogs. As our family, dogs must protect their healthy growth and keep dogs away from the harm of parasites, so that we can get closer with dogs.