Vascular anomalies are abnormal growths or formations of blood vessels in the body. They can be classified into two main types: vascular malformations, which are present at birth and grow with the individual, and vascular tumors, which are abnormal growths that may appear shortly after birth. These anomalies can occur anywhere in the body and may affect the skin, organs, or tissues. Symptoms of vascular anomalies vary depending on their type and location. Some may cause pain, swelling, or changes in skin color, while others may be asymptomatic. Diagnosis typically involves imaging techniques like ultrasound or MRI, and treatment options can include observation, medication, or surgical intervention.