Hibakusha (被爆者?) is the Japanese word for the surviving victims of the 1945 atomic bombings of Hiroshima and Nagasaki. The word literally translates as "explosion-affected people" and is used, often derogatorily, to refer to people who were exposed to radiation from the bombings.
The Atomic Bomb Survivors Relief Law defines hibakusha as people who fall into one or more of the following categories: within a few kilometers of the hypocenters of the bombs; within 2 km of the hypocenters within two weeks of the bombings; exposed to radiation from fallout; or not yet born but carried by pregnant women in any of these categories. The Japanese government has recognized about 650,000 people as hibakusha. As of March 31, 2016[update], 174,080 are still alive, mostly in Japan. The government of Japan recognizes about 1% of these as having illnesses caused by radiation.
Hibakusha are entitled to government support. They receive a certain amount of allowance per month. About 1%, certified as suffering from bomb-related diseases, receive a special medical allowance.
The memorials in Hiroshima and Nagasaki contain lists of the names of the hibakusha who are known to have died since the bombings. Updated annually on the anniversaries of the bombings, as of August 2016[update] the memorials record the names of more than 475,000 hibakusha; 303,195 in Hiroshima and 172,230 in Nagasaki.
In 1957 the Japanese Parliament passed a law providing for free medical care for hibakusha. During the 1970s, non-Japanese hibakusha who suffered from those atomic attacks began to demand the right for free medical care and the right to stay in Japan for that purpose. In 1978 the Japanese Supreme Court ruled that such persons were entitled to free medical care while staying in Japan.