Childhood leukemia rates had peaked between 1950 and 1953, but since then, adult leukemia cases had increased beyond normal levels, a situation that would not change for decades. By 1955, other cancers had also begun to occur at rates far higher than for non-hibakusha. Thyroid cancer incidences rose in the 1960s, and within the next five years, stomach and lung cancer rates escalated. Incidences of liver, colon, bladder, ovary, and skin cancers, among others, also increased.
