In clinical settings, to determine whether red spots on the skin are hemangiomas, it is advised to visit a hospital and seek the expertise of an oncologist or a dermatologist specializing in vascular surgery for proper diagnosis. For small red spots on the skin, one can apply local pressure to see if the redness fades, returning to a normal skin color, which could indicate that the spots are hemangiomas. Hemangiomas are relatively common benign vascular tumors. In most cases, they do not cause symptoms clinically and are due to endothelial cell abnormalities in the vessels. Symptoms such as pain might occur only when the hemangioma is large enough to cause compression.