Mastitis

I had mastitis before.

Mastitis causes an inflammation of the mammary glands in a cow's udder. The milk from an untreated cow is still relatively safe to drink, but it's full of white blood cells that form unappetizing clots and flakes, and that make the milk go sour more quickly.

Every place I have worked and that's Asia, Africa, Europe, America, South America, mastitis is typically the number-one problem of dairy farmers.