The document discusses three main causes of rope deterioration in mines: 1) Wear from friction with drums and pulleys and internal movement of strands, which can be minimized by design, layout, and lubrication. 2) Corrosion from contact with acidic or alkaline water internally and externally, which can be reduced by proper lubrication and galvanization. 3) Fatigue from repeated stress, which occurs near caps and can be decreased by correct installation, winding regularity, and cutting ropes during recapping. Corrosion fatigue, involving both corrosion and stress, causes the most deterioration with no fatigue limit and multiple cracks.