First, let’s review what a hernia is: An organ or tissue in the human body leaves its normal anatomical position
Look up Shuowen Jiezi, the character for hernia looks like this

Try to understand “疝” through its pictographic components
On the left is 疒 (which looks like a bed), and on the right is 山 (mountain)


疒 can be said to be very vivid—when you are sick, you must lie in bed, so bed is related to illness. But what does mountain have to do with it?
Looking up the dictionary, the character “山” besides meaning a geographic mountain, also has the meaning of “to disperse” (宣)
[Shuowen] 山 means to disperse. Dispersing qi gives rise to all things; it is a stone that is high.

Now look at the explanation of “疝”
Next, look up “疝” in the dictionary
[Shuowen Jiezi] Abdomen pain. From the radical 疒 and the sound 山. Pronounced suo wan qie
[Shuowen Jiezi commentary] (疝) means abdominal pain. Explanation: Heart pain is called 疝. 疝 also called 詵. Qi is intensely moving upward causing pain. “Yin” swelling is called 隤. Qi moving downward causes 隤. Also said, 疝 also means 詵. 詵 means drawing in the lower abdomen, causing acute pain. From 疒 and the sound 山. Pronounced suo wan qie. Section 14.
It mentions that 疝 is also 詵, and there is a character we haven’t seen before, “詵”. Let’s check the dictionary
[Shuowen Jiezi] Means to speak earnestly. From 言 and 先, where 先 is also the sound. From the poem: “螽斯羽詵詵兮。” Pronounced suo zhen qie

It seems unrelated to hernia, but the two characters sound very similar—疝 (shàn), 詵 (shēn)
My personal understanding is they are homophones used interchangeably
Back to “疝”
[Shuowen Jiezi commentary] (疝) abdominal pain. Explanation: Heart pain is called 疝. 疝 is 詵. Qi intensely moving upward causes pain. Yin swelling is called 隤. Qi moves downward causing 隤. Also said 疝 means 詵 too. 詵 means drawing in the lower abdomen causing acute pain. From radical 疒 and sound 山. Pronounced suo wan qie. Section 14.
It says heart pain is called 疝, yin swelling is called 隤 (tuí)
Yin swelling called 隤 is easy to understand—it should be the scrotal swelling caused by inguinal hernia
隤 means to fall or drop, exactly matching the pathophysiology of inguinal hernia. Since 山 has the meaning of disperse, and 隤 means downward falling inguinal hernia, I boldly guess 疝 refers to the diaphragm hernia which protrudes upward.
Am I correct?
[Shi Ming·Explanation of diseases] Explaining diseases: Yin swelling is called 隤, qi moves downward causing 隤. Also called 疝. Also means 詵, causing acute pain pulling in the lower abdomen.
Haha, turns out 隤, 疝, 詵 all mean the same thing and should all refer to inguinal hernia
Summary and question
[Shi Ming·Explanation of diseases] Explaining diseases: Yin swelling is called 隤, qi moves downward causing 隤. Also called 疝. Also means 詵, causing acute pain pulling in the lower abdomen.
- 隤 means downward fall,
yin swelling is called 隤, qi moves downward causing 隤. It makes sense to name the inguinal hernia as “隤”. - The left side of 疝 is 疒, right side is 山, and 山 means to disperse; it can be understood as normal structures dispersing to other locations, which is logical. Later, not only inguinal hernias but all hernias used this character to name.
- 詵 and 疝 are homophones used interchangeably.
Question: Why was the character “疝” chosen over “隤” to name it finally? My guess is 疝 is easier to write ![]()


References
https://www.zdic.net/hans/疝
https://www.zdic.net/hans/山
https://www.zdic.net/hans/疒
https://www.zdic.net/hans/詵
https://ctext.org/shi-ming/shi-ji-bing/zh