For several reasons, like poor blood circulation, more years of exposure to fungi and because nails may grow more slowly and thicken with aging, nail fungus infection is more common among older adults because they more vulnerable to be infected by nail fungus. Nail fungus infections tend to appear on men more than women and those with a family history of nail fungus infection. Resistance to nail fungus infection likely has a genetic component.
Some common factors that increase the risk to get nail fungus infection on your nails:
• Wearing artificial nails. The gap between the artificial nail and the real nail can be a place for nail fungus to infect your nail.
• Nail manicure and certain nail products can damage the nail or cuticle, making the nail more vulnerable to infection.
• Having a job in which your hands or feet are often wet (e.g. dishwashers of life guards).
• Wearing tight shoes or wearing shoes that make your feet warm and sweaty.
• Wearing wet shoes for 2 days or more in a row.
• Living in a hot, humid climate.
• Sharing personal items such as shoes, socks, nail clippers, or nail files with other people.
• Injuring the nail (as in the case of frequent nail trimming).