By just having a glimpse at the heading many of us may think that a patient who is affected by such a disease may transform into some kind of fang gnashing , blood-drinking supernatural creature. However this kind of transformation is only confined to the movies. Beyond the realms of Hollywood it doesn't cause the victims to transform into a creature as described above.
The Vampires disease or Porphyria which is its scientific term is a set of genetic disorders in which an important part of hemoglobin called heme is not made properly which means there is malfunction of the hemoglobin production. People suffering from it face symptoms manifested by mythological vampires. Their skin is sensitive to sunlight, their urine is reddish to purplish in colour, the gums are shrunk making the teeth look more prominent and canine-like and they have an adverse reaction to garlic. Other major symptoms include abdominal pain or cramping (only in some forms of the disease), problems with the nervous system and muscles (seizures, mental disturbances, nerve damage)