The exact cause of<unk> 's is not known, though there are thought to be a number of factors predisposing a person to<unk> 's. Although there is no evidence that<unk>  is inherited, it is possible that unidentified genetic factors could contribute to the development of the condition. Recent studies have made a correlation between<unk> 's sufferers and Western European ancestry, but no definitive link can be positively confirmed. The necrosis of the lunate bone can frequently be traced to a trauma to the wrist, like a compound fracture, which could cause the lunate's blood supply to be interrupted. Blood flows to the lunate through several arteries, each supplying a percentage. When one of these pathways is severed, the likelihood the patient will develop necrosis increases. Despite a preponderance of evidence, no particular cause has been conclusively verified. Data exists on the internet that most people suffering from<unk> 's are affected in their dominant hand, though about one-third of sufferers report the condition in their non-dominant hand. In very few cases have there been people that have acquired it in both wrists.<unk>  is classified as a "rare disorder," meaning that it affects fewer than 200,000 people in the U.S. population. Many<unk> 's patients are frustrated by the lack of consensus among hand surgeons about optimal treatments for<unk> 's. No matter what the disease's stage of progression, there is no one best treatment, and the decision is often based partially, or even mostly, on incidental factors such as the patient's pain tolerance, the patient's desire to return to active use of the hand (such as in manual occupations), and the surgeon's level of expertise with different treatments. Though, since each case of<unk> 's is different, the makeup of the wrist and arm bones are important factors which are individualized to each patient. Therefore, one surgery will never be able to solve all the problems associated with the disease. Thus, no consensus can be reached among surgeons.
Kienböck's disease
Tornwaldt's disease
Pogosta disease
Dieterich's disease
Ontario Minamata disease
Kimura's disease
Brill–Zinsser disease
Urbach–Wiethe disease