What are the causes of angular cheilitis?
Doctors have not been able to find the exact cause for this condition. However, some sources believe that vitamin and iron deficiency is the cause. This, again, is denied by certain other sources. Ill-fitting dentures are also believed to be the cause. They lead to the collapse of face or mouth. Some sources even put forward the possibility of serious causes like sexually transmitted disease including AIDS. One thing is certain – this condition is caused by bacteria or fungus. However, research is still on to ascertain whether the cracks occur first and then are inflicted by bacteria or fungi, or whether the cracks itself are caused by fungi or bacteria.