Sophia Delgado
Long nails are trendy, but they can be a health hazard. Research shows that long nails are more likely to carry harmful bacteria and yeast underneath them, increasing the risk of spreading infections. The longer the nail, the more surface area for microorganisms to cling to. Studies have found various bacteria and fungi underneath fingernails, and even thorough handwashing may not eliminate all germs. While some claim that those with long nails are conscious of keeping them clean, health experts recommend trimming nails short and maintaining proper hand hygiene to prevent the potential spread of pathogens.
| Characteristics | Values |
|---|---|
| Probability of carrying microorganisms | High |
| Types of microorganisms | 32 different bacteria and 28 different fungi |
| Health hazards | Bacteria and fungi can cause serious infections |
| Recommended nail length | Nails should be shorter than 3mm beyond the tip of the finger |
| Ways to keep long nails clean | Regular appointments with a nail technician, clean nail beds and cuticles, sanitize hands regularly, wear gloves while cooking and cleaning |
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What You'll Learn
Long nails are a health hazard
The risk of carrying microorganisms is increased with long artificial nails, long natural nails, gel nails, acrylic nails, or nail polish as they are harder to clean under. Even with thorough handwashing, it is not 100% effective in ridding the nails of germs. This is because the space between the skin and nail creates a protected environment for the growth and proliferation of microorganisms, and normal hand-washing procedures cannot access this area.
The presence of bacteria under long nails can contribute to the spread of infections and serious illnesses. For example, a study found that the bacteria underneath the long nails of two nurses may have contributed to the deaths of babies under their care. Additionally, a 2017 study found that people could easily spread germs from their hands to other parts of their bodies, such as their eyes and mouths, leading to infections.
To reduce the health risks associated with long nails, it is recommended to keep nails short and clean. The CDC and the American Academy of Dermatology Associations advise washing hands for at least 15 seconds, cleaning nail beds and cuticles, and sanitizing hands regularly.
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Bacteria and fungi underneath long nails
Long nails are trendy on social media platforms like TikTok, Instagram, and YouTube. However, experts warn that they could be health hazards due to the presence of bacteria and fungi underneath them.
Biology professor Jeffrey Kaplan states that the area under the fingernail in the crevice is where most of the bacteria live. He adds that "the longer the nail, the more surface area there is for microorganisms to adhere." This is supported by a study that found nails longer than 3 millimeters beyond the fingertip carry more harmful bacteria and yeast. The study tested the fingernails of 18 healthcare workers, and all of those with long nails had bacteria and yeast, compared to only 18% of those with short nails.
The types of bacteria found under long nails include Klebsiella, which can cause pneumonia and urinary tract infections, and Candida parapsilosis, a yeast that can lead to wound and bloodstream infections. Another study found Methicillin-resistant Staphylococcus, or MRSA, an antibiotic-resistant bacteria causing serious infections, under half of the fingernail samples.
While some people with long nails may keep them clean, the length creates a challenge for effective decontamination during handwashing or scrubbing. The space under the nail provides a protected and moist environment, facilitating the growth and proliferation of microorganisms. This is why health experts, including the U.S. Centers for Disease Control and Prevention, recommend keeping nails trimmed short to prevent the spread of infections.
For those who prefer long nails, there are ways to maintain nail health and minimize the risk of bacterial growth. These include regularly cleaning the nail beds and cuticles, sanitizing hands, and wearing gloves during activities like cooking and cleaning. Additionally, maintaining a healthy diet and staying hydrated can contribute to strong and healthy nails.
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The difficulty of decontaminating long nails
Long nails are trendy, with celebrities like Cardi B and Billie Eilish sporting them. They are also a health hazard. Research shows that long nails are more likely to carry harmful bacteria and yeast underneath them. This is because the longer the nail, the more surface area there is for microorganisms to adhere to. The area under the fingernail, in the crevice, is where most of the bacteria live.
A study released at the Infectious Disease Society of America meeting in San Francisco found that artificial and natural nails longer than 3 millimeters beyond the fingertip carry more harmful bacteria and yeast. The fingernails of 18 healthcare workers were tested, and the results showed that all of those with long nails had bacteria and yeast, compared to only 18% of those with short nails.
Another study found that nurses with artificial nails had more bacteria on their fingertips than those with natural nails, both before and after handwashing. This is likely because the space between the skin and nail creates an ideal environment for the growth and proliferation of microorganisms, thanks to the physical protection provided by the nail and the moisture.
While handwashing is essential for hygiene, it is not always effective in removing all germs from the nails. The subungual area, or the space beneath the fingernail, can be difficult to clean thoroughly during normal hand-washing procedures. Even surgeons, who scrub their hands thoroughly before surgery, cannot eliminate all the bacteria from under their fingernails.
To reduce the risk of spreading infections, it is recommended to keep nails short and clean. For those who prefer long nails, it is crucial to maintain proper hand hygiene and regularly clean the nail beds and cuticles. Additionally, wearing gloves while cooking and cleaning can help prevent the buildup of germs under the fingernails.
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The spread of infections from long nails
Long nails are trendy, with celebrities and social media influencers sporting intricately designed nails that are often over 2 inches long. However, this trend may come with health risks due to the potential for bacteria and fungi to accumulate underneath the nails. The spread of these microorganisms from long nails can have serious implications for health and safety, especially in certain professions.
Bacteria and Fungi Under Long Nails
The area beneath the fingernail, known as the subungual compartment, provides an ideal environment for bacteria and fungi to thrive. The space between the skin and the nail offers physical protection and moisture, promoting the growth and proliferation of microorganisms. Studies have identified up to 32 different types of bacteria and 28 different types of fungi underneath fingernails. These include harmful pathogens such as Klebsiella, Candida parapsilosis, and Methicillin-resistant Staphylococcus aureus (MRSA).
Transmission and Prevention
The longer the nail, the greater the surface area for microorganisms to adhere to. This increases the risk of spreading infections to others, especially in healthcare settings. Research has linked long nails to deadly outbreaks in neonatal intensive care units, and the bacteria under long nails may have contributed to the deaths of babies in the care of nurses. Even with thorough handwashing, it is challenging to completely rid long nails of germs. Tiny cracks or chips in nail polish can also harbour bacteria, further increasing the potential for pathogen transmission.
Recommendations
To prevent the spread of infections from long nails, the CDC and health experts recommend keeping nails trimmed short and clean. For those who prefer long nails, it is crucial to maintain proper hand hygiene, including regular handwashing for at least 15 seconds and paying special attention to the area underneath the nails. Additionally, eating a healthy diet, staying hydrated, and cleaning the nail beds and cuticles can help keep nails strong and healthy. In certain professions, such as healthcare, food handling, and childcare, it is essential to follow guidelines and regulations regarding nail length and cleanliness to minimise the risk of spreading infections.
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The impact of nail polish on bacteria
Long nails have become a trend on social media platforms like TikTok and Instagram. However, experts warn that they could be health hazards due to the presence of bacteria and fungi underneath. A study released at the Infectious Disease Society of America meeting in San Francisco found that nails longer than 3 millimeters beyond the fingertip carry more harmful bacteria and yeast than shorter nails. This finding has significant implications for workers in various industries, including healthcare, daycare, and food handling.
Another study compared the bacterial burden on gel-polished nails, standard polished nails, and unpolished nails before and after hand hygiene with an alcohol-based hand rub. It was found that standard polished nails had a higher bacterial burden than gel-polished nails before hand hygiene, but the difference was not significant after hand hygiene. Additionally, gel-polished nails were associated with an increased rate of isolation of potential pathogens and a higher rate of failure to eradicate them after hand hygiene.
The type of nail polish and the chemicals used can also impact the presence of bacteria. Classic nail polish is painted onto the nail plate and air-dried, while "hybrid" polish is longer-lasting but still applied and removed like regular polish. On the other hand, gel polish is cured with UV light, resulting in a durable coating that lasts for at least two weeks. The use of communal jars of powder in salons can be a reservoir for bacteria, fungi, and viruses, and improper removal of gel polish can damage the nail plate and cuticle.
Overall, while nail polish itself may not directly impact the presence of bacteria, the length of the nails, the type of polish, and proper hand hygiene practices are crucial factors in maintaining nail health and reducing the risk of bacterial infections.
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Frequently asked questions
Yes, long nails are more likely to carry harmful bacteria and yeast underneath them. Studies have found 32 different bacteria and 28 different fungi underneath fingernails.
Various types of bacteria can be found under long nails, including Klebsiella, which can cause pneumonia and urinary tract infections, and Candida parapsilosis, a yeast that can cause wound and bloodstream infections. Another common type of bacteria found under long nails is Staphylococcus aureus, which can cause serious infections.
Yes, artificial nails tend to be longer than natural nails and are often covered in nail polish, which can create tiny chips or cracks that harbor bacteria. Studies have found that artificial nails have more bacteria on them than natural nails, even after handwashing.
People with long nails should regularly clean their nail beds and cuticles and sanitize their hands frequently. They should also pay special attention to the area underneath the nails when washing their hands, as this area can be difficult to clean thoroughly. Additionally, it is recommended to keep nails trimmed short to prevent the spread of infection.
