10 of the Scariest Health Conditions You Want to Avoid

1. Leprosy

As one of the oldest conditions on this list, leprosy has existed for thousands of years. It’s contracted from a type of bacteria called Mycobacterium leprae or Mycobacterium lepromatosis. It causes inflammation in the skin, eyes and the respiratory tract. Multidrug therapy (MDT) is used in modern times to effectively treat the infection.