1.Vascular Birthmarks: These birthmarks result from abnormalities in blood vessels and include:

• Strawberry Hemangiomas: These are raised, red birthmarks that can appear anywhere on the body. They tend to grow rapidly during the first few months of life and then gradually shrink and fade over time. Most strawberry hemangiomas do not require treatment, but in some cases, if they obstruct vision or breathing, or if there are concerns about potential complications, medical intervention may be necessary.
• Port-Wine Stains: These birthmarks are flat, pink, or reddish-purple patches that typically do not fade or go away on their own. They can occur anywhere on the body and may become more prominent with age. 

2. Pigmented Birthmarks: These birthmarks result from an overgrowth of pigment-producing cells and include:

• Café-au-Lait Spots: These spots; usually light to dark brown; are typically harmless and may fade or remain unchanged over time. However, if multiple café-au-lait spots are present or if they are associated with other symptoms, it is advisable to consult with a healthcare professional for further evaluation.
• Mongolian Spots: These birthmarks are bluish-gray or bruise-like patches that are commonly found on the lower back or buttocks. Mongolian spots are more common in individuals with darker skin tones and often fade on their own during childhood.