Charak Samhita
मांसोत्सन्ना महायोनिः पर्ववङ्क्षणशूलिनी । इत्येतैर्लक्षणैः प्रोक्ता विंशतिर्योनिजा गदाः ॥३७॥
This is known as mahayoni. ॥ Consequences of yonivyapat॥ Thus, the twenty female gynecological disorders (disorders of the genital tract) have been described based upon clinical features.
english translation
mAMsotsannA mahAyoniH parvavaGkSaNazUlinI । ityetairlakSaNaiH proktA viMzatiryonijA gadAH ॥37॥
hk transliteration by Sanscript