Birthmarks means abnormality that present when, or develops soon after a baby is born. Birthmarks causes due to underlying disease example like Mongolian spots, benign vascular malformations, hemangioma.
It’s sometimes difficult to tell at first when a baby is ill, but you may have a funny feeling that things are not quite right. If you are at all worried, ask for help. You are not fussing. It’s far better to be on the safe side, particularly with a very small baby. Trust your own judgement
Infant formula milk must be prepared as carefully as possible. It is not a sterile product, and even though tins and packets of milk powder are sealed, they can contain bacteria such as Cronobacter sakazakii (formerly known as Enterobacter sakazakii) and, more rarely, salmonella.