Why sharing bathroom items matters
When you’re away from home and you forget a towel, razor, or toothbrush, the urge to borrow can be strong. But experts warn that sharing these personal items isn’t just inconvenient—it can raise your risk of infections. Microbes can linger on fabric, plastic, and metal, and the warm, moist conditions in most bathrooms create a friendly environment for germs to thrive.
Which items are most risky to share?
Towels
Towels aren’t just for drying your skin; they can carry bacteria, fungi, and even viruses. While a quick wash helps, it may not eliminate all microbes, especially if the towel has become damp and warmed by a bathroom. Some studies link shared towels to higher rates of skin infections, especially among people who play contact sports or have minor cuts. Even if you wash after use, repeated sharing can expose you to antibiotic-resistant strains, which are harder to treat later.
Toothbrushes
Toothbrushes are exposed to saliva and often touch gums and lips during use. Sharing them can transfer pathogens, including potential viruses and bacteria such as Staphylococcus aureus and herpes simplex virus type 1 (HSV-1). HSV-1 can be shed even when there are no visible symptoms, and viruses like HSV-1 can remain viable on plastic for several days. In addition, toothbrushes can harbor bacteria like E. coli and Pseudomonas, increasing the risk of oral or systemic infections.
Razors
Razors aren’t just about shaving; they can cause nicks and skin breaks that act as entry points for microbes. Sharing razors risks transmitting blood-borne pathogens and, potentially, human papillomaviruses (HPVs) that cause warts. Dermatologists typically recommend everyone uses their own razor to minimize these risks, especially if you have any skin irritation or cuts.
Who’s most at risk?
People with cuts or grazes are more vulnerable because microbes can exploit skin breaks to enter the body. Reduced immune function also raises risk: babies with developing immune systems, older adults, people on immune-suppressing medications (like some cancer therapies or post-transplant regimens), and individuals with type 2 diabetes are more susceptible to infections.
What about the odds on a single occasion?
While a one-off sharing moment may not guarantee a infection, the cumulative risk rises with repeated sharing. Even if you do not develop an illness, you could become colonized with resistant microbes, which could complicate treatment later. It’s wise to view personal hygiene items as individual equipment—your personal hygiene ecosystem should stay exclusive to you.
Practical tips for staying safe on the road
- Carry a compact travel towel, toothbrush, and a sleek razor if possible.
- Ask politely for a spare item or choose a private bathroom when available.
- Keep your items dry and stored separately from communal gear to minimize cross-contamination.
- If you must share in an emergency, rinse and dry the item thoroughly and avoid using it if you notice visible contamination or nicks.
Bottom line
For most people, it’s best not to make a habit of sharing towels, razors, or toothbrushes. The potential for transmitting skin infections, oral pathogens, and even blood-borne or HPV-related viruses makes personal hygiene items the kind of thing you should keep to yourself. When possible, bring your own essentials or choose accommodation with private amenities. Your future self (and your immune system) will thank you.
