There are people who are born with deformaties.
Like "Siamese Twins".
There are cases with people who are born with extra limbs, two faces, two heads, 3 legs etc. There are also people born with gentic disorders like Albinoism, horns on head, growing "tails", growing hair on face like an animal, etc.
People should not make fun of them. Pray and have pity & mercy on them.