A haemangioma is a collection of blood vessels that form a lump under the skin; it’s often called a ‘strawberry mark’ as it looks like the surface of a strawberry.
They can appear anywhere on the body.
Sometimes infantile haemangiomas occur deeper in the skin, in which case the skin can look blue or purple.
Haemangiomas are common, particularly in girls, and affect around 5% of babies soon after birth. They rapidly increase in size for the first six months before eventually shrinking and disappearing by around seven years of age.