While an exact cause of mange in dogs is unknown, many experts believe genetic factors, such as problems with the immune system, may predispose a dog to developing mange.

Please remove spaces between words.
Whileanexactcauseofmangeindogsisunknown,manyexpertsbelievegeneticfactors,suchasproblemswiththeimmunesystem,maypredisposeadogtodevelopingmange.