diff --git a/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/UserStore.cs b/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/UserStore.cs
index d8d1422eb2..5899ab71a1 100644
--- a/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/UserStore.cs
+++ b/src/Microsoft.AspNetCore.Identity.EntityFrameworkCore/UserStore.cs
@@ -872,7 +872,7 @@ namespace Microsoft.AspNetCore.Identity.EntityFrameworkCore
         }
 
         /// <summary>
-        /// Retrieves the user associated with the specified login provider and login provider key..
+        /// Retrieves the user associated with the specified login provider and login provider key.
         /// </summary>
         /// <param name="loginProvider">The login provider who provided the <paramref name="providerKey"/>.</param>
         /// <param name="providerKey">The key provided by the <paramref name="loginProvider"/> to identify a user.</param>
@@ -1100,7 +1100,7 @@ namespace Microsoft.AspNetCore.Identity.EntityFrameworkCore
         }
 
         /// <summary>
-        /// Retrieves the current failed access count for the specified <paramref name="user"/>..
+        /// Retrieves the current failed access count for the specified <paramref name="user"/>.
         /// </summary>
         /// <param name="user">The user whose failed access count should be retrieved.</param>
         /// <param name="cancellationToken">The <see cref="CancellationToken"/> used to propagate notifications that the operation should be canceled.</param>
@@ -1136,7 +1136,7 @@ namespace Microsoft.AspNetCore.Identity.EntityFrameworkCore
         }
 
         /// <summary>
-        /// Set the flag indicating if the specified <paramref name="user"/> can be locked out..
+        /// Set the flag indicating if the specified <paramref name="user"/> can be locked out.
         /// </summary>
         /// <param name="user">The user whose ability to be locked out should be set.</param>
         /// <param name="enabled">A flag indicating if lock out can be enabled for the specified <paramref name="user"/>.</param>
@@ -1211,7 +1211,7 @@ namespace Microsoft.AspNetCore.Identity.EntityFrameworkCore
         }
 
         /// <summary>
-        /// Sets a flag indicating if the specified <paramref name="user"/>'s phone number has been confirmed..
+        /// Sets a flag indicating if the specified <paramref name="user"/>'s phone number has been confirmed.
         /// </summary>
         /// <param name="user">The user whose telephone number confirmation status should be set.</param>
         /// <param name="confirmed">A flag indicating whether the user's telephone number has been confirmed.</param>
diff --git a/src/Microsoft.AspNetCore.Identity/ClaimsIdentityOptions.cs b/src/Microsoft.AspNetCore.Identity/ClaimsIdentityOptions.cs
index 2f05002bf4..9081dc9fab 100644
--- a/src/Microsoft.AspNetCore.Identity/ClaimsIdentityOptions.cs
+++ b/src/Microsoft.AspNetCore.Identity/ClaimsIdentityOptions.cs
@@ -35,7 +35,7 @@ namespace Microsoft.AspNetCore.Identity
         public string UserIdClaimType { get; set; } = ClaimTypes.NameIdentifier;
 
         /// <summary>
-        /// Gets or sets the ClaimType used for the security stamp claim..
+        /// Gets or sets the ClaimType used for the security stamp claim.
         /// </summary>
         /// <remarks>
         /// This defaults to "AspNet.Identity.SecurityStamp".
diff --git a/src/Microsoft.AspNetCore.Identity/IUserLockoutStore.cs b/src/Microsoft.AspNetCore.Identity/IUserLockoutStore.cs
index 2166e258bf..c48df74642 100644
--- a/src/Microsoft.AspNetCore.Identity/IUserLockoutStore.cs
+++ b/src/Microsoft.AspNetCore.Identity/IUserLockoutStore.cs
@@ -53,7 +53,7 @@ namespace Microsoft.AspNetCore.Identity
         Task ResetAccessFailedCountAsync(TUser user, CancellationToken cancellationToken);
 
         /// <summary>
-        /// Retrieves the current failed access count for the specified <paramref name="user"/>..
+        /// Retrieves the current failed access count for the specified <paramref name="user"/>.
         /// </summary>
         /// <param name="user">The user whose failed access count should be retrieved.</param>
         /// <param name="cancellationToken">The <see cref="CancellationToken"/> used to propagate notifications that the operation should be canceled.</param>
@@ -71,7 +71,7 @@ namespace Microsoft.AspNetCore.Identity
         Task<bool> GetLockoutEnabledAsync(TUser user, CancellationToken cancellationToken);
 
         /// <summary>
-        /// Set the flag indicating if the specified <paramref name="user"/> can be locked out..
+        /// Set the flag indicating if the specified <paramref name="user"/> can be locked out.
         /// </summary>
         /// <param name="user">The user whose ability to be locked out should be set.</param>
         /// <param name="enabled">A flag indicating if lock out can be enabled for the specified <paramref name="user"/>.</param>
diff --git a/src/Microsoft.AspNetCore.Identity/IUserLoginStore.cs b/src/Microsoft.AspNetCore.Identity/IUserLoginStore.cs
index 69b057be34..519ba09274 100644
--- a/src/Microsoft.AspNetCore.Identity/IUserLoginStore.cs
+++ b/src/Microsoft.AspNetCore.Identity/IUserLoginStore.cs
@@ -45,7 +45,7 @@ namespace Microsoft.AspNetCore.Identity
         Task<IList<UserLoginInfo>> GetLoginsAsync(TUser user, CancellationToken cancellationToken);
 
         /// <summary>
-        /// Retrieves the user associated with the specified login provider and login provider key..
+        /// Retrieves the user associated with the specified login provider and login provider key.
         /// </summary>
         /// <param name="loginProvider">The login provider who provided the <paramref name="providerKey"/>.</param>
         /// <param name="providerKey">The key provided by the <paramref name="loginProvider"/> to identify a user.</param>
diff --git a/src/Microsoft.AspNetCore.Identity/IUserPasswordStore.cs b/src/Microsoft.AspNetCore.Identity/IUserPasswordStore.cs
index 8893c9eb7d..639451a121 100644
--- a/src/Microsoft.AspNetCore.Identity/IUserPasswordStore.cs
+++ b/src/Microsoft.AspNetCore.Identity/IUserPasswordStore.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 namespace Microsoft.AspNetCore.Identity
 {
     /// <summary>
-    /// Provides an abstraction for a store containing users' password hashes..
+    /// Provides an abstraction for a store containing users' password hashes.
     /// </summary>
     /// <typeparam name="TUser">The type encapsulating a user.</typeparam>
     public interface IUserPasswordStore<TUser> : IUserStore<TUser> where TUser : class
diff --git a/src/Microsoft.AspNetCore.Identity/IUserPhoneNumberStore.cs b/src/Microsoft.AspNetCore.Identity/IUserPhoneNumberStore.cs
index 3bed8b41c0..e82d37549b 100644
--- a/src/Microsoft.AspNetCore.Identity/IUserPhoneNumberStore.cs
+++ b/src/Microsoft.AspNetCore.Identity/IUserPhoneNumberStore.cs
@@ -41,7 +41,7 @@ namespace Microsoft.AspNetCore.Identity
         Task<bool> GetPhoneNumberConfirmedAsync(TUser user, CancellationToken cancellationToken);
 
         /// <summary>
-        /// Sets a flag indicating if the specified <paramref name="user"/>'s phone number has been confirmed..
+        /// Sets a flag indicating if the specified <paramref name="user"/>'s phone number has been confirmed.
         /// </summary>
         /// <param name="user">The user whose telephone number confirmation status should be set.</param>
         /// <param name="confirmed">A flag indicating whether the user's telephone number has been confirmed.</param>
diff --git a/src/Microsoft.AspNetCore.Identity/IdentityErrorDescriber.cs b/src/Microsoft.AspNetCore.Identity/IdentityErrorDescriber.cs
index 3d779dbbd1..dd6ca26b6d 100644
--- a/src/Microsoft.AspNetCore.Identity/IdentityErrorDescriber.cs
+++ b/src/Microsoft.AspNetCore.Identity/IdentityErrorDescriber.cs
@@ -189,7 +189,7 @@ namespace Microsoft.AspNetCore.Identity
         /// <summary>
         /// Returns an <see cref="IdentityError"/> indicating user lockout is not enabled.
         /// </summary>
-        /// <returns>An <see cref="IdentityError"/> indicating user lockout is not enabled..</returns>
+        /// <returns>An <see cref="IdentityError"/> indicating user lockout is not enabled.</returns>
         public virtual IdentityError UserLockoutNotEnabled()
         {
             return new IdentityError
diff --git a/src/Microsoft.AspNetCore.Identity/SignInOptions.cs b/src/Microsoft.AspNetCore.Identity/SignInOptions.cs
index 370224f2d6..ac8ddc0571 100644
--- a/src/Microsoft.AspNetCore.Identity/SignInOptions.cs
+++ b/src/Microsoft.AspNetCore.Identity/SignInOptions.cs
@@ -4,7 +4,7 @@
 namespace Microsoft.AspNetCore.Identity
 {
     /// <summary>
-    /// Options for configuring sign in..
+    /// Options for configuring sign in.
     /// </summary>
     public class SignInOptions
     {
diff --git a/src/Microsoft.AspNetCore.Identity/UserManager.cs b/src/Microsoft.AspNetCore.Identity/UserManager.cs
index 985e8dc85d..589a1dcfe9 100644
--- a/src/Microsoft.AspNetCore.Identity/UserManager.cs
+++ b/src/Microsoft.AspNetCore.Identity/UserManager.cs
@@ -877,7 +877,7 @@ namespace Microsoft.AspNetCore.Identity
         }
 
         /// <summary>
-        /// Retrieves the user associated with the specified external login provider and login provider key..
+        /// Retrieves the user associated with the specified external login provider and login provider key.
         /// </summary>
         /// <param name="loginProvider">The login provider who provided the <paramref name="providerKey"/>.</param>
         /// <param name="providerKey">The key provided by the <paramref name="loginProvider"/> to identify a user.</param>