The saying that “people who keep cats are prone to cancer” is not scientific, and there is no sufficient scientific evidence to prove it. The occurrence of cancer is multifactorial, including genes, environment, psychology, food and other factors. There is no inevitable relationship between owning a cat and cancer, but during the period of owning a cat, you should pay attention to the pet’s hygiene, regularly bathe the cat, clean up the feces, and wash your hands in time after touching the cat to avoid infection with bacteria. At the same time, avoid giving your cat unhygienic, undercooked food to avoid infection with parasites. The cat should also be vaccinated to expel parasites inside and outside the cat. Normally, patients are advised to eat a reasonable diet, supplement adequate nutrition, such as protein, vitamins, etc., and eat more vegetables and fruits. It is recommended to eat less fried, spicy, stimulating food. Usually and actively exercise to enhance physical fitness. If the people who are allergic to cat hair should avoid keeping cats, so as to avoid allergic reactions such as sneezing, rashes and itchy skin. If physical discomfort occurs, you should go to the hospital in a timely manner to clarify the cause of the disease and treat the symptoms.