欲產(chǎn)之婦脈離經(jīng)．沉細(xì)而滑也同名．夜半覺痛應(yīng)分誕．來日日午定知生． 脈經(jīng)曰．離經(jīng)其脈浮．設(shè)腹痛引腰脊．為欲生也．但離經(jīng)者不產(chǎn)也．又云其脈離經(jīng)．夜半覺．日中則生也． 經(jīng)者常也．謂離其常處為離經(jīng)．假如妊婦昨日見左沉實(shí)為男之脈．今日或脈浮．是離其尋常之脈．而異于平日．又且腹痛．是知將誕也．通真子引難經(jīng)一呼三至曰離經(jīng)為解．李 范又引難經(jīng)一呼一至曰離經(jīng)以解沉細(xì)而滑．皆非也．難經(jīng)言損至二脈．雖同名離經(jīng)．其脈與理則不同．且脈經(jīng)明言離經(jīng)．其脈浮也．不曾引援難經(jīng)之文．今脈訣因其言脈浮又添沉細(xì)而滑．同名離經(jīng)．蓋以前所診男女脈．或云浮大為女．若只脈浮為離經(jīng)．若平常見浮大為女之脈．何以辨離經(jīng)．故又增沉細(xì)而滑．以見離浮大之常經(jīng)為沉滑也．圣惠方云．夜半子時(shí)覺腹痛．來日午時(shí)必定生產(chǎn)．謂子午相沖．正半日時(shí)數(shù)也．通真子曰夜半痛．日午生．此言恐未為的．又曰腹痛而腰不痛者未產(chǎn)也．若腹痛連腰痛甚者即產(chǎn)．所以然者腎候于腰．胞系于腎．故也．診其尺脈．轉(zhuǎn)急如切繩轉(zhuǎn)珠者．即產(chǎn)也．生產(chǎn)有難易．痛來有緊慢．安可定半日．當(dāng)斷以活法． 身重體熱寒又頻．舌下之脈黑復(fù)青．及舌上冷子當(dāng)死．腹中須遣母歸冥．面赤舌青細(xì)尋看．母活子死定應(yīng)難．唇口俱青沫又出．母子俱死總高KT ．面青舌〔青〕（赤）沫出頻．母死子活定知真．不信若能看應(yīng)驗(yàn)．尋之賢哲不虛陳． 脈指南作面青舌赤．蓋面以候母．舌以候子．今云子活．合以舌赤為是．若云舌青．則與前面赤舌青．母活子死之候相反．若胎先下．其子得活．如未下．子母俱亡．自身重體熱寒又頻至此．并不用脈．只以外候參決子母生死．蓋以臨產(chǎn)脈不可考．但當(dāng)以察色而知之．