You can use wet wipes to wipe the anus after the toilet water pops up to the buttocks, or you can use warm water to clean the anus if it’s convenient. If there is a break around the anus, you can use potassium permanganate solution in the ratio of 1:5000 by mass to clean the anus. Normally when defecating should pay attention to avoid water splashing into the anus. If there are local infection symptoms, you should go to the hospital in time, clear diagnosis, symptomatic treatment. Toilet water splashed on the buttocks, will not lead to the infection of certain infectious diseases, most infectious diseases virus, in the outside world survival time are not long. Simple skin contact, there is no wound around the anus, the probability of infection is almost zero, the patient does not need to worry.