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The diseases presenting with cardinal symptom of generalized enlargement of abdomen is regarded as ''udara roga''. Emaciation, loss of appetite, pedal edema, inability to perform any physical activity are its other characteristic features. Extreme impairment of ''agni'' (digestion and metabolism) is the basic pathology of ''udara roga'' in general, which is regarded as one among the ''mahagada'' (major illness). It is classified into eight types viz. four types of ''doshaja udara roga'' (''vataja, pittaja, kaphaja'' and ''sannipataja''), ''plihodara'' (splenomegaly), ''kshatodara/chhidrodara'' (abdominal enlargement due to intestinal perforation), ''baddhagudodara'' (enlargement of abdomen due to gastrointestinal obstruction) and ''jalodara/udakodara'' (ascites). ''Yakritodara'' (hepatomegaly) is also a distinct type of ''udara roga'' but incorporated in the ''plihodara'' since the etiology and treatment of these two conditions are similar.  

The diseases presenting with cardinal symptom of generalized enlargement of abdomen is regarded as ''udara roga''. Emaciation, loss of appetite, pedal edema, inability to perform any physical activity are its other characteristic features. Extreme impairment of ''agni'' (digestion and metabolism) is the basic pathology of ''udara roga'' in general, which is regarded as one among the ''mahagada'' (major illness). It is classified into eight types viz. four types of ''doshaja udara roga'' (''vataja, pittaja, kaphaja'' and ''sannipataja''), ''plihodara'' (splenomegaly), ''kshatodara/chhidrodara'' (abdominal enlargement due to intestinal perforation), ''baddhagudodara'' (enlargement of abdomen due to gastrointestinal obstruction) and ''jalodara/udakodara'' (ascites). ''Yakritodara'' (hepatomegaly) is also a distinct type of ''udara roga'' but incorporated in the ''plihodara'' since the etiology and treatment of these two conditions are similar.  

Each type of ''udara roga'' has distinct etiology, pathology and symptomatology. ''Vataja, pittaja, kaphaja'' and ''sannipataja udara roga'' are comparable to the primary peritonitis based on the similarity of the symptoms. ''Plihodara'' (enlargement of the spleen) can be compared by the description of splenomegaly for different reasons. Symptoms of ''yakritodara'' resembles with that of hepatomegaly of varied pathology. Intestinal obstruction for different reasons causes ''baddhagudodara'' (enlargement of abdomen due to gastrointestinal obstruction).  Intestinal perforation is explained under the name of ''chhidrodara/kshatodara'' (abdominal enlargement due to intestinal perforation). ''Udara roga'' in general develops in three distinct stages. Conditions of ''ajatodaka'' is initial phase of generalized enlargement of abdomen without fluid accumulation, Piccha is generalized enlargement of abdominal distention due to liquefying state of dosha and jatodaka is generalized enlargement of abdomen with fluid accumulation. All the types of udara roga end up in jalodara (enlargement of abdomen due to collection of fluid) in the terminal phases. Among the different types of udara roga, the later one in the list is more difficult to cure than its previous one. Presence of complication in udara roga is indicative of incurability. Virechana (therapeutic purgation), niruha basti (decoction enema), anuvasana basti (unctuous enema), intake of milk and buttermilk and surgical interventions (tapping) form the crux of treatment of udara roga.

Each type of ''udara roga'' has distinct etiology, pathology and symptomatology. ''Vataja, pittaja, kaphaja'' and ''sannipataja udara roga'' are comparable to the primary peritonitis based on the similarity of the symptoms. ''Plihodara'' (enlargement of the spleen) can be compared by the description of splenomegaly for different reasons. Symptoms of ''yakritodara'' resembles with that of hepatomegaly of varied pathology. Intestinal obstruction for different reasons causes ''baddhagudodara'' (enlargement of abdomen due to gastrointestinal obstruction).  Intestinal perforation is explained under the name of ''chhidrodara/kshatodara'' (abdominal enlargement due to intestinal perforation). ''Udara roga'' in general develops in three distinct stages. Conditions of ''ajatodaka'' is initial phase of generalized enlargement of abdomen without fluid accumulation, ''pichcha'' is generalized enlargement of abdominal distention due to liquefying state of ''dosha'' and ''jatodaka'' is generalized enlargement of abdomen with fluid accumulation. All the types of ''udara roga'' end up in ''jalodara'' (enlargement of abdomen due to collection of fluid) in the terminal phases. Among the different types of ''udara roga'', the later one in the list is more difficult to cure than its previous one. Presence of complication in ''udara roga'' is indicative of incurability. ''Virechana'' (therapeutic purgation), ''niruha basti'' (decoction enema), ''anuvasana basti'' (unctuous enema), intake of milk and buttermilk and surgical interventions (tapping) form the crux of treatment of ''udara roga''.

'''Keywords''': Udara   roga, vatodara, pittodara, kaphodara, sannipatodara, plihodara, yakritodara, baddhodara, chidrodara, kshatodara, jalodara, intestinal perforation, splenomegaly, hepatomegaly, intestinal obstruction, ascites, ajātodakāvasthā, picchāvasthā, jatodakavasthā, virechana, tapping

'''Keywords''': ''Udara roga, vatodara, pittodara, kaphodara, sannipatodara, plihodara, yakritodara, baddhodara, chidrodara, kshatodara, jalodara,'' intestinal perforation, splenomegaly, hepatomegaly, intestinal obstruction, ascites, ''ajatodakavastha, picchavastha, jatodakavastha, virechana,'' tapping

=== Introduction ===

=== Introduction ===