A rare disease, also referred to as an orphan disease, is any disease that affects a small percentage of the population.
Most rare diseases are genetic, and thus are present throughout the person’s entire life, even if symptoms do not immediately appear. Many rare diseases appear early in life, and about 30 percent of children with rare diseases will die before reaching their fifth birthday.With a single diagnosed patient only, ribose-5-phosphate isomerase deficiency is considered the rarest genetic disease.
No single cutoff number has been agreed upon for which a disease is considered rare. A disease may be considered rare in one part of the world, or in a particular group of people, but still be common in another.
Here we bring you 12 rare medical conditions which are so weird you do not believe is real.
[WARNING: Some of the below images may be disturbing]
1. Hypertrichosis, Werewolf Syndrome
Hypertrichosis is an abnormal amount of hair growth over the body. Extensive cases of hypertrichosis have informally been called werewolf syndrome because the appearance is similar to the werewolf. The excess growth of hair occurs in areas of the skin with the exception of androgen-dependent hair of the pubic area, face, and axillary regions.
Polymelia is a birth defect involving limbs, in which the affected individual has more than the usual number of limbs. In humans and most land-dwelling animals, this means having five or more limbs. The extra limb is most commonly shrunken and/or deformed.