diff --git a/zaaReloaded2/Formatter/AbnormalStyle.cs b/zaaReloaded2/Formatter/AbnormalStyle.cs
index cfac503..8f35601 100755
--- a/zaaReloaded2/Formatter/AbnormalStyle.cs
+++ b/zaaReloaded2/Formatter/AbnormalStyle.cs
@@ -36,7 +36,10 @@ namespace zaaReloaded2.Formatter
         Bold = 0x01,
 
         [Description("Kursiv")]
-        Italics = 0x02
+        Italics = 0x02,
+
+        [Description("Unterstrichen")]
+        Underline = 0x04
     }
 
     public static class AbnormalStyleExtensions
@@ -56,6 +59,8 @@ namespace zaaReloaded2.Formatter
                 markup += String.Format("<{0}b>", dash);
             if (style.HasFlag(AbnormalStyle.Italics))
                 markup += String.Format("<{0}i>", dash);
+            if (style.HasFlag(AbnormalStyle.Underline))
+                markup += String.Format("<{0}u>", dash);
             return markup;
         }
     }
diff --git a/zaaReloaded2/Formatter/DocumentWriter.cs b/zaaReloaded2/Formatter/DocumentWriter.cs
index dea1bb8..e7535a7 100755
--- a/zaaReloaded2/Formatter/DocumentWriter.cs
+++ b/zaaReloaded2/Formatter/DocumentWriter.cs
@@ -208,6 +208,12 @@ namespace zaaReloaded2.Formatter
                     case "</i>":
                         sel.Font.Italic = 0;
                         break;
+                    case "<u>":
+                        sel.Font.Underline = WdUnderline.wdUnderlineSingle;
+                        break;
+                    case "</u>":
+                        sel.Font.Underline = WdUnderline.wdUnderlineNone;
+                        break;
                     case "</style>":
                         sel.ClearCharacterStyle();
                         break;
diff --git a/zaaReloaded2/ViewModels/SettingsViewModel.cs b/zaaReloaded2/ViewModels/SettingsViewModel.cs
index 54c9e60..f97f969 100755
--- a/zaaReloaded2/ViewModels/SettingsViewModel.cs
+++ b/zaaReloaded2/ViewModels/SettingsViewModel.cs
@@ -162,6 +162,29 @@ namespace zaaReloaded2.ViewModels
             }
         }
 
+        /// <summary>
+        /// Gets or sets whether abnormal values shall be underlined.
+        /// </summary>
+        public bool AbnormalUnderline
+        {
+            get
+            {
+                return _settings.AbnormalStyle.HasFlag(AbnormalStyle.Underline);
+            }
+            set
+            {
+                if (value)
+                {
+                    _settings.AbnormalStyle |= AbnormalStyle.Underline;
+                }
+                else
+                {
+                    _settings.AbnormalStyle &= ~AbnormalStyle.Underline;
+                }
+                OnPropertyChanged("AbnormalUnderline");
+            }
+        }
+
         #endregion
 
         #region Constructors
diff --git a/zaaReloaded2/Views/SettingsView.xaml b/zaaReloaded2/Views/SettingsView.xaml
index a678936..ba8dff2 100755
--- a/zaaReloaded2/Views/SettingsView.xaml
+++ b/zaaReloaded2/Views/SettingsView.xaml
@@ -60,12 +60,19 @@
                       SelectedItem="{Binding ReferenceStyle.SelectedItem}"
                       x:Name="ReferenceStyleChooser" HorizontalAlignment="Stretch" />
         </DockPanel>
-        <DockPanel DockPanel.Dock="Top">
+        <DockPanel DockPanel.Dock="Top" Margin="0 10 0 0">
             <Label DockPanel.Dock="Left" Content="Auszeichnung pathologischer Werte:" Margin="0 0 10 0"
                    Target="{Binding ElementName=AbnormalStyleChooser}" />
             <StackPanel Orientation="Horizontal" VerticalAlignment="Center">
-                <CheckBox IsChecked="{Binding AbnormalBold}" Content="Fett" />
-                <CheckBox IsChecked="{Binding AbnormalItalics}" Content="Kursiv" Margin="10 0 0 0" />
+                <ToggleButton IsChecked="{Binding AbnormalBold}" Height="25" Width="25">
+                    <TextBlock FontWeight="Black">F</TextBlock>
+                </ToggleButton>
+                <ToggleButton IsChecked="{Binding AbnormalItalics}" Height="25" Width="25">
+                    <TextBlock FontStyle="Italic">K</TextBlock>
+                </ToggleButton>
+                <ToggleButton IsChecked="{Binding AbnormalUnderline}" Height="25" Width="25">
+                    <TextBlock TextDecorations="Underline">U</TextBlock>
+                </ToggleButton>
             </StackPanel>
         </DockPanel>
         <StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal" HorizontalAlignment="Right">