Lighter cases of puerperal mastitis are often called breast engorgement. It can cause bovine mastitis (inflammation of the udder) in dairy cows. Cows receiving rBGH supplements may more frequently contract an udder infection known as mastitis. In cattle, GBS causes mastitis, an infection of the udder. Chronic cystic mastitis is an older name for fibrocystic disease. The most frequent benign conditions are puerperal mastitis, fibrocystic breast changes and mastalgia. Mastitis infection can cause fat levels to decline. Milk from cows suffering from mastitis has an increased somatic cell count. Cattle can be affected by protothecal enteritis and mastitis. It provides a useful technique for detecting subclinical cases of mastitis. Milk from cows with mastitis also has a higher somatic cell count. ASC also is used as a teat dip for control of mastitis in dairy cattle. This article includes description of mastitis as well as various kinds of mammary abscesses. Breast cancer may coincide with or mimic symptoms of mastitis. "S. aureus" is one of the causal agents of mastitis in dairy cows.