9 Most Bizarre Medical Conditions You’ve Never Seen Prepare yourself, these images can be quite disturbing. Sometimes reality is even stranger than fiction. These poor souls have been afflicted with some of the most bizarre medical conditions you will ever see. 1. Neurofibromatosis Though not many know of this health condition, Neurofibromatosis is a hereditary condition that carries higher chances of tumor formation in the nerves, particularly within the brain region. It is also the same disorder which the well-famed Joseph Merrick (AKA Elephant Man) was afflicted with.