 [ Symptoms ] what could be the causes of very bad hygene habits  my nephew age25 has very bad hygene habits like not knowung that he needs to bathe on a regular basis he also does not get that he should wash his hands after visiting the bathroom it is so bad that he has to be told to shower at which pont he will i noticed his tendency to smell at an early age and i spoke to him about it and reaffirmed how important it is to maintain good hygene i concluded he would grow out of it but years later he is older and much worse please help    thanks [ Disease ] nothing really causes poor hygiene per se it is a choice unfortunately your nephew can easily change but chooses not to you could have a heart to heart talk to him again but a decision to improve his hygiene habits may still be ignored if he had a significant other they may have the influence but as an aunt you can only do so much like any bad habits his lack of personal hygiene may be difficult to change unless he decides to do it