Charak Samhita
पञ्चात्मा मारुतः पित्तं कफो गुदवलित्रयम्। सर्व एव प्रकुप्यन्ति गुदजानां समुद्भवे॥२४॥
॥ Aggravation of tridosha in arsha॥ Five types of vata (prana, apana, vyana, udana and samana), pitta and kapha - all these morbid factors in their aggravated state afflict the three anal sphincters at ano-rectum and lead to hemorrhoids.
english translation
paJcAtmA mArutaH pittaM kapho gudavalitrayam। sarva eva prakupyanti gudajAnAM samudbhave॥24॥
hk transliteration by Sanscript