it is called an open fontanal and is a birth defect. usually, if it is the size of the tip of your little finger, it will gradually close up. if it is larger than that, it doesn't usually close and can lead to hydrocephalus which may result in death. You have to be very careful when caring for a puppy with this as any injury to the head can be fatal. if you find an open font in a puppy you have purchased, the breeder should be notified. |