67096
Treatment When the orifice is small ( < 1 or 2 cm ) , 90 % close within 3 years ( some sources state 85 % of all umbilical hernias , regardless of size ) , and if these hernias are asymptomatic , reducible , and do n't enlarge , no surgery is needed ( and in other cases it must be considered ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None