Tallulah Willis defends her decision to post photos of her father Bruce Willis as he battles frontotemporal dementia

Willis ' daughter, Tallulah , shared a series of photos of her father on Instagram .

The retired actor is battling frontotemporal dementia (FTD) Willis is the youngest of the three daughters he shares with ex-wife Demi Moore .

One fan suggested that perhaps she should not share photos as he continues to struggle with his health.