The frequency of bathing for an elderly person can vary based on individual needs, health conditions, and preferences. In general, experts recommend bathing seniors at least once or twice a week. However, factors such as skin condition, mobility, and overall health should be considered. 

Some seniors may benefit from more frequent bathing, while others, due to skin sensitivity or health conditions, may find bathing every few days sufficient. It's important to tailor the bathing frequency to the individual's comfort and well-being, and consulting with healthcare professionals can provide personalized guidance based on specific health considerations.