Hump__ (onomatopoeia. The sound of striking an object); pimple wrinkle (frown. Indicates annoyance, fretting); 疙颤颤 (shaking and swaying; trembling); 疙秃 (sores protruding from the head).

[～瘩]a. a lump of disease protruding from the skin or knotted on the muscles, such as "a ~ ~ ~ on the head"; b. small spherical or lumpy things, such as "mustard ~ ~ ~"; c. problems that are not easily solved, such as "Ideas ~ ~ ~"; d. Not smooth or crisp, such as "The statements in this essay are very ~ ~ ~"; e. Quantifiers, such as "a ~ ~ cake"; f. Trouble, awkward. They are also known as "疙疸"（"瘩"、"疸 "are pronounced softly）. And "Zheng Zitong" according to wart, head sores protruding also. Commonly called pimple bald. Huainanzi - Qi custom training "mother for his son to cure pimple bald, blood flow to the ear, see people think love to. If the blood flowed to the ear, those who saw it thought that it was a matter of love. The love of the matter is also, from the viewer is different