Charak Samhita
पुरीषजास्तुल्यसमुत्थानाः श्लेष्मजैः; तेषां स्थानं पक्वाशयः, ते प्रवर्धमानास्त्वधो विसर्पन्ति, यस्य पुनरामाशयाभिमुखाः स्युर्यदन्तरं तदन्तरं तस्योद्गारनिःश्वासाः पुरीषगन्धिनः स्युः; संस्थानवर्णविशेषास्तु- सूक्ष्मवृत्तपरीणाहाः श्वेता दीर्घा ऊर्णांशुसङ्काशाः केचित्, केचित्पुनः स्थूलवृत्तपरीणाहाः श्यावनीलहरितपीताः; तेषां नामानि ककेरुकाः, मकेरुकाः, लेलिहाः; सशूलकाः, सौसुरादाश्चेति; प्रभावः- पुरीषभेदः, कार्श्यं, पारुष्यं, लोमहर्षाभिनिर्वर्तनं च, त एव चास्य गुदमुखं परितुदन्तः कण्डूं चोपजनयन्तो गुदमुखं पर्यासते, त एव जातहर्षा गुदनिष्क्रमणमतिवेलं कुर्वन्ति; इत्येष श्लेष्मजानां पुरीषजानां च क्रिमीणां समुत्थानादिविशेषः ॥१३॥
[Purishaja krimi (parasites in feces)] The parasites growing in feces grow due to the same etiological factor which cause shleshmaja krimi - Their habitat is pakwashaya (large intestine and rectum); when developed they move downwards or both ways; however if they tend to move (upwards) towards stomach, eructation and breath of the patient may have fecal odor. Their morphology and color- these purishaja krimi are morphologically of two types : 1. some are minute round in circumference white in color and like hair of goat (wool); 2. whereas others are big, round in circumference and may have the colors like blackish, blue, green and yellow; These two types of worms can have the names like - kakeruka, makeruka, leliha(which lick), sashulaka(which cause pain), sausurada; They may produce symptoms like- diarrhea, emaciation, roughness, and horripilation; on reaching the anus, they produce piercing pain and itching there; when they are exhilarated, they come out of anus frequently. Thus these are the characteristics of the worms grown due to the vitiation of shleshma and purisha.
english translation