Even after the COVID-19 pandemic, a significant portion of the population in Japan continues to wear masks. For foreigners, the natural question is: why?
The answer goes far deeper than COVID. Japan’s mask-wearing culture existed long before the pandemic — and it is rooted in a combination of medical, cultural, and psychological factors that are uniquely Japanese.
Masks in Japan Before COVID
Japan’s relationship with masks is believed to date back to the Spanish flu pandemic of 1918. In the decades that followed, as industrialization and air pollution grew, masks became established as a practical tool for protecting personal health.
From the 1990s onward, the dramatic rise in hay fever cases accelerated mask culture even further. Every spring, a large portion of the Japanese population suffers from pollen allergies. The mask became a completely ordinary part of daily life — not a sign of illness, but a sensible precaution.
The Deep Connection to Hay Fever
Japan is one of the world’s most severely affected countries when it comes to hay fever. During the cedar pollen season from February to April, it is estimated that around 30 to 40 percent of the population experiences symptoms.
During this period, a mask is not a precaution — it is a necessity. When foreigners notice that “everyone seems to be wearing masks in spring,” the mystery dissolves once you understand the scale of Japan’s hay fever problem.
The Psychology of Covering Your Face
Japan’s mask culture is not only about physical health. There is a psychological dimension as well.
In Japan, there exists a certain psychological barrier around showing one’s bare face in public. For some people, wearing a mask provides a sense of comfort — a layer between themselves and the outside world. Among younger generations in particular, masks have become almost a part of personal appearance, used to manage anxiety about how they look to others.
There is also the deeply ingrained Japanese sense of consideration for others. Wearing a mask when you feel unwell — so as not to pass anything on to the people around you — is an expression of the same collective awareness that shapes so much of Japanese social behavior.
Why People Kept Wearing Masks After COVID
When the Japanese government relaxed its mask recommendations in 2023, many people continued wearing them anyway. Foreigners frequently ask: why?
Several reasons explain this. For many, mask-wearing had simply become a habit too deeply ingrained to drop. For others, the psychological comfort of covering their face had become something they were reluctant to give up. And for many Japanese people, the concern about passing on a cold or the flu to others remained as strong as ever.
How Foreigners See It
For many foreigners, Japan’s mask culture is initially puzzling. “Are they sick?” “Are they hiding something?” are common first reactions.
But once the background is understood, the perspective shifts. Japan’s mask culture was not born from fear — it grew from consideration for others. The same value that runs through so many aspects of Japanese society — “think about how your actions affect the people around you” — is expressed here in the simple act of wearing a mask.
What Masks Reveal About Japanese Values
Japan’s high rate of mask-wearing is not simply a hygiene habit. Behind it lies a set of values — consideration for the group, respect for others, and the fundamental Japanese principle of not causing inconvenience to those around you.
The next time you see someone in Japan wearing a mask, it may not be because they are sick. It may simply be their way of saying: I am thinking of you. Seen in that light, Japan’s mask culture looks entirely different.