If the prefix of disease is removed from the word "cancer", it will be pronounced "yan". In fact, it is another way of writing "rock" for "rock". The word "cancer" is still pronounced "yan" in Taiwan. So why did the ancients use the word "rock" when they coined the word "cancer"? This is about the oracle bone inscriptions unearthed in Yinxu, Anyang, Henan, China, which are more than 3,000 years old. The oracle bone inscriptions contain the earliest records of cancer. It is said that the ancients discovered that tumors on female breasts were "as high as the top of a rock and as deep as a rock ravine." , so the prefix "disease" was added to the word "rock", and the word "cancer" appeared. Among the existing Chinese medicine literature, the earliest records of the word cancer are the "Wei Ji Baoshu" of the Song Dynasty in the 12th century and the "Ren Zhai Zhi Zhi Fu Yi Prescription" in 1264 AD. The earliest description of the characteristics of cancer was A brief description (extant Chinese medicine literature) is of the latter. The book says: "The cancer is high in the upper part and deep in the lower part, like a cave, with numerous hanging beads... The poisonous roots are deep and perforated. It is more common in men." In the abdomen, women are more likely to find it in the breasts, neck, shoulders or arms, and the external symptoms can cause coma. "This description not only explains that the cancer is rock-like, with poisonous roots hidden deep in the body, but also points out that men's cancer mostly occurs in the body. In the abdomen, women mostly occur in the breasts or neck. It is also said that cancer will eventually lead to serious consequences of coma.