HD to be repaired

Hi everyone!

I recently have problems with the HD of my macbook retina. I check often the disk (like once a mounth) and it always detect problems saying that the disk is damaged and it need to be repaired using the recovery mode. Every time I repair it and once it has done I check again the disk. Every time after been repaired it seems to be ok. But after a few time I always have the same problem.

Does anyone know why it happens? Does anyone have some advices?

Thank you