Eighty-year-olds bathing intervals and seasonally related, winter and spring season is recommended to bathe 1 to 2 times a week, summer heat and sweat can increase the number of times, but pay attention to safety, must be accompanied by family members to avoid falls. Bathing on the body skin and urogenital organs have a good cleaning effect, through the bath, can clean up the skin mucous membrane surface bacteria, to prevent the occurrence of infection. Regular bathing can effectively reduce the incidence of common diseases such as itchy skin, dermatitis and urinary tract infections in the elderly. But the elderly skin secretions less, not much activity, not much sweat, do not need too frequent bathing, bathing too many times, on the contrary, it is easy to lead to skin dryness, damage, and increase the chances of skin infections. Reasonable arrangement of the frequency of bathing in combination with the physical state of the elderly can make the elderly emotionally soothing, pleasurable and reduce body odor, which is conducive to the physical and mental health of the elderly. If there is any discomfort, consult a doctor in time.