Anterior abdominal wall hernia

Anterior (or ventral) abdominal wall hernias (herniae also used) are a subgroup of abdominal wall herniae that are differentiated by the location of the hernia. 

• epigastric hernia
• incisional hernia
• port site hernia
• interparietal hernia
• parastomal hernia
• paraumbilical hernia
• Spigelian hernia
• umbilical hernia
• rectus sheath 

Other types that may be seen at different locations are:

• Maydl hernia
• Richter hernia: contains only one wall of a bowel loop