Vascular malformations are abnormal formations of blood vessels that can occur anywhere in the body. They can involve arteries, veins, or capillaries and may be present at birth or develop later. These malformations can vary in size and may cause symptoms such as swelling, pain, or bleeding, depending on their location and type. There are several types of vascular malformations, including capillary malformations, venous malformations, and arteriovenous malformations. Diagnosis typically involves imaging techniques like ultrasound or MRI. Treatment options may include observation, medication, or surgical intervention, depending on the severity and symptoms associated with the malformation.