Mastitis is inflammation of the breast as a result of infection. It generally is caused by an organism that enters through an injured area of the nipples, such as a crack or blister. Measures to prevent the development of mastitis include changing nursing pads when they are wet and avoiding continuous pressure on the breasts. Soap is drying and could lead to cracking of the nipples, and the client should be instructed to avoid using soap on the nipples. The mother is taught about the importance of hand washing and that she should breastfeed every 2 to 3 hours.