Lifestyle

Can Going Outside With Wet Hair Give You a Cold? What Doctors Say About This Old Warning

By Erica Coleman · October 29, 2026

Generations of parents and grandparents have sent children back inside to dry their hair before heading out into the cold. The warning still gets passed along every fall. Doctors say the real story is a little different.

“You cannot get sick from simply going outside with wet hair,” Cleveland Clinic says. “Hair being wet is not the cause for catching a cold,” family medicine specialist Dr. Matthew Goldman said in the clinic’s article. “A microorganism, such as a virus, has to be involved to cause a cold.”

That matches how health officials describe the illness. The Centers for Disease Control and Prevention says a cold is a viral infection of the upper respiratory tract and that more than 200 respiratory viruses can cause one. Rhinoviruses are the most frequent cause in the United States, according to the CDC, which says adults average two to three colds a year.

Here is what the evidence says about the old warning.

The virus has to come from somewhere. The CDC says most respiratory viruses spread through droplets released when an infected person coughs or sneezes. People can breathe them in, or pick them up by touching a contaminated surface and then touching their eyes, nose or mouth. Mayo Clinic adds hand-to-hand contact and shared objects such as dishes, towels and telephones.

Colds really are more common when it’s cold. Mayo Clinic says both children and adults are more likely to get colds in fall and winter. Dr. Goldman told Cleveland Clinic that colder air is a better environment for viruses such as rhinovirus to travel through the air. He also said that when people gather indoors to escape the weather, infections spread more often and more easily from person to person. Cleveland Clinic’s conclusion is that it is the gathering indoors, not wet hair or the weather, that makes people sick.

Getting chilled may still play a small part. In a study at Cardiff University’s Common Cold Centre, researchers randomly assigned 180 healthy volunteers to a foot chill or a comparison procedure. Over the next four to five days, 13 of the 90 chilled volunteers reported a cold, compared with 5 of the 90 who were not chilled. The researchers concluded that chilling the feet brought on cold symptoms in around 10% of people, and said more research was needed to understand how those symptoms relate to an actual infection.

Some bugs that feel like a cold are more serious. The CDC says the viruses behind flu, COVID-19 and RSV can cause cold-like symptoms but are more likely to cause severe illness, especially in older adults and people with underlying conditions. It advises getting tested if you suspect flu or COVID-19, particularly if you are at higher risk, because antiviral treatments work best when started soon after symptoms begin.

What actually helps. Mayo Clinic notes there is no vaccine for the common cold. Its advice is to wash your hands often with soap and water for at least 20 seconds, or use a hand sanitizer with at least 60% alcohol, avoid touching your eyes, nose and mouth with unwashed hands, clean surfaces that get touched often and keep your distance from people who are sick.

Mayo Clinic says most adults with a cold do not need medical care, but it recommends seeing a doctor for symptoms that get worse or do not improve, a fever above 101.3 degrees Fahrenheit that lasts more than three days, shortness of breath, wheezing, or an intense sore throat, headache or sinus pain.

This article is for general information and is not medical advice. Talk with your doctor about symptoms that worsen or do not improve, and get care right away for trouble breathing. This article was produced with the assistance of AI and fact-checked against the sources cited by LightWave Reports.