Sebaceous cysts are medically also known as epidermoid cysts.
In Chinese medicine, cysts are classified into three types: blood cysts, flesh cysts, and sinew cysts.
The authentic surgery book has a more specific explanation for these three types of cysts.
"Blood cysts are slightly purple and red, a mix of soft and hard, the skin slightly hides them, they are wrapped like red silk, and once scratched, they bleed uncontrollably."
"Flesh cysts are as soft as cotton, swelling like a bun, with unchanged skin color, neither tight nor loose."
"Sinew cysts are hard and purple, with bulging veins, twisting and winding like earthworms."
Blood cysts are equivalent to what Western medicine calls hemangiomas, capillary hemangiomas, and cavernous hemangiomas, among others.
Flesh cysts include fibromas, lipomas, cysts, and so on.
As for sinew cysts, the most typical example is varicose veins.
The bump on Wang Kun's nose is undoubtedly a flesh cyst in Chinese medicine.
