Is Ghusl Invalidated, If Water Does Not Reach The Skin Due To Impurity?
For Wuzu and Ghusl both, one need not go into unnecessary worry of making sure that water has actually reached the pores of the skin at microscopic level. But it does not mean that one should be careless when doing Wuzu and Ghusl (i.e. not intentionally missing certain parts ). For Ghusl to be valid, it needs to be done in a thorough and complete manner ( as per Quran ) . And when it is done this way, all the impurities like dirt, mud etc. will be removed automatically. For further details on Wuzu AND Ghusl , please see: Discussion 81817