Can Shared Washing Machines Spread STDs or Skin Infections? - Urology

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Shared washing machine


Hello, doctor.
I am renting a place for work and need to share a washing machine with others.
Although adding detergent to the washing machine should help disinfect, the machine is not always filled to capacity with water during each wash.
When I take my clothes out, I occasionally accidentally touch parts of the washing machine that may not have been rinsed thoroughly.
After washing, I usually hang my clothes in a place that does not get direct sunlight for about a day.
I would like to ask, is there a possibility of contracting a sexually transmitted infection or skin disease from my clothes coming into contact with the inside or sides of the washing machine shared with others? Thank you, doctor.

n, 30~39 year old female. Ask Date: 2022/11/20

Dr. Du Shixi reply Urology


Hello: I personally believe that with proper cleaning, the issues you are concerned about should not occur.
Wishing you good health.

Reply Date: 2022/11/20

More Info


Using shared washing machines can raise concerns about the transmission of sexually transmitted diseases (STDs) and skin infections. However, the risk of contracting such infections through shared laundry facilities is generally considered low, especially when proper hygiene practices are followed.

Firstly, it is important to understand how STDs are transmitted. Most STDs, including those caused by viruses (like HIV, herpes, and HPV) or bacteria (like gonorrhea and chlamydia), are primarily spread through direct sexual contact. They require a specific mode of transmission, typically involving mucous membranes or direct contact with infected bodily fluids. The likelihood of these pathogens surviving on surfaces, such as those found in a washing machine, is minimal. For instance, viruses like HIV do not survive long outside the human body, and most bacteria and viruses lose their infectious capability shortly after being exposed to air and environmental conditions.

When it comes to skin infections, such as those caused by fungi (like athlete's foot or ringworm) or bacteria (like staph infections), the situation is somewhat different. These pathogens can survive on surfaces for longer periods, but the risk of transmission through laundry is still considered low. Washing clothes in hot water with detergent is effective in killing most pathogens. Additionally, the mechanical action of the washing machine helps to remove dirt and microbes from clothing.

In your specific situation, where you are concerned about touching the inside of the washing machine and potentially transferring pathogens to your clothes, it is essential to note that the risk remains low. If the washing machine is regularly cleaned and maintained, the likelihood of encountering infectious agents is further reduced. Moreover, if you are washing your clothes in hot water and using detergent, you are taking significant steps to ensure that any potential pathogens are eliminated.

Regarding the drying of clothes, it is advisable to dry them in sunlight whenever possible, as UV rays can help kill remaining pathogens. However, if you are drying your clothes in a shaded area, the risk of infection does not significantly increase, especially if the clothes have already been washed properly.

In summary, while shared washing machines can theoretically harbor pathogens, the actual risk of transmitting STDs or skin infections through this medium is very low, especially with proper washing techniques. If you have specific concerns about your health or potential exposure to infections, it is always a good idea to consult with a healthcare professional for personalized advice and, if necessary, testing. Regular check-ups and maintaining good personal hygiene practices will further help in minimizing any risks associated with shared laundry facilities.

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