diff --git a/app/User.php b/app/User.php
index ed4520f..94fcf46 100644
--- a/app/User.php
+++ b/app/User.php
@@ -4,6 +4,7 @@ namespace App;
 
 use Illuminate\Notifications\Notifiable;
 use Illuminate\Foundation\Auth\User as Authenticatable;
+use Illuminate\Support\Facades\Auth;
 
 class User extends Authenticatable
 {
@@ -35,8 +36,18 @@ class User extends Authenticatable
      * @param int $size 画像サイズ
      * @return string Gravatar 画像URL
      */
-    public function getProfileImageUrl($size = 30) : string {
+    public function getProfileImageUrl($size = 30) : string
+    {
         $hash = md5(strtolower(trim($this->email)));
         return '//www.gravatar.com/avatar/' . $hash . '?s=' . $size;
     }
+
+    /**
+     * このユーザがログイン中のユーザ本人であるかをチェックします。
+     * @return bool 本人かどうか
+     */
+    public function isMe()
+    {
+        return Auth::check() && $this->id === Auth::user()->id;
+    }
 }
diff --git a/resources/views/ejaculation/show.blade.php b/resources/views/ejaculation/show.blade.php
index fe86916..5e2567c 100644
--- a/resources/views/ejaculation/show.blade.php
+++ b/resources/views/ejaculation/show.blade.php
@@ -8,13 +8,13 @@
             @endcomponent
         </div>
         <div class="col-lg-8">
-            @if ($user->is_protected && !(Auth::check() && $user->id === Auth::user()->id))
+            @if ($user->is_protected && !$user->isMe())
                 <div class="card">
                     <div class="card-body">
                         <span class="oi oi-lock-locked"></span> このユーザはチェックイン履歴を公開していません。
                     </div>
                 </div>
-            @elseif ($ejaculation->is_private && !(Auth::check() && $user->id === Auth::user()->id))
+            @elseif ($ejaculation->is_private && !$user->isMe())
                 <div class="card">
                     <div class="card-body">
                         <span class="oi oi-lock-locked"></span> 非公開チェックインのため、表示できません
@@ -26,7 +26,7 @@
                         <!-- span -->
                         <div class="d-flex justify-content-between">
                             <h5>{{ $ejaculatedSpan ?? '精通' }} <small class="text-muted">{{ $ejaculation->before_date }}{{ !empty($ejaculation->before_date) ? ' ～ ' : '' }}{{ $ejaculation->ejaculated_date->format('Y/m/d H:i') }}</small></h5>
-                            @if (Auth::check() && $user->id === Auth::user()->id)
+                            @if ($user->isMe())
                                 <div>
                                     <a class="text-secondary timeline-action-item" href="#"><span class="oi oi-pencil" data-toggle="tooltip" data-placement="bottom" title="修正"></span></a>
                                     <a class="text-secondary timeline-action-item" href="#" data-toggle="modal" data-target="#deleteCheckinModal" data-id="{{ $ejaculation->id }}" data-date="{{ $ejaculation->ejaculated_date }}"><span class="oi oi-trash" data-toggle="tooltip" data-placement="bottom" title="削除"></span></a>
diff --git a/resources/views/user/okazu.blade.php b/resources/views/user/okazu.blade.php
index b0ef760..b1f135e 100644
--- a/resources/views/user/okazu.blade.php
+++ b/resources/views/user/okazu.blade.php
@@ -1,7 +1,7 @@
 @extends('user.base')
 
 @section('tab-content')
-@if ($user->is_protected && !(Auth::check() && $user->id === Auth::user()->id))
+@if ($user->is_protected && !$user->isMe())
     <p class="mt-4">
         <span class="oi oi-lock-locked"></span> このユーザはチェックイン履歴を公開していません。
     </p>
diff --git a/resources/views/user/profile.blade.php b/resources/views/user/profile.blade.php
index 6df3dec..4b3209c 100644
--- a/resources/views/user/profile.blade.php
+++ b/resources/views/user/profile.blade.php
@@ -1,7 +1,7 @@
 @extends('user.base')
 
 @section('tab-content')
-@if ($user->is_protected && !(Auth::check() && $user->id === Auth::user()->id))
+@if ($user->is_protected && !$user->isMe())
     <p class="mt-4">
         <span class="oi oi-lock-locked"></span> このユーザはチェックイン履歴を公開していません。
     </p>
@@ -12,7 +12,7 @@
                 <!-- span -->
                 <div class="d-flex justify-content-between">
                     <h5>{{ $ejaculation->ejaculated_span ?? '精通' }} <a href="{{ route('checkin.show', ['id' => $ejaculation->id]) }}" class="text-muted"><small>{{ $ejaculation->before_date }}{{ !empty($ejaculation->before_date) ? ' ～ ' : '' }}{{ $ejaculation->ejaculated_date->format('Y/m/d H:i') }}</small></a></h5>
-                    @if (Auth::check() && $user->id === Auth::user()->id)
+                    @if ($user->isMe())
                     <div>
                         <a class="text-secondary timeline-action-item" href="#"><span class="oi oi-pencil" data-toggle="tooltip" data-placement="bottom" title="修正"></span></a>
                         <a class="text-secondary timeline-action-item" href="#" data-toggle="modal" data-target="#deleteCheckinModal" data-id="{{ $ejaculation->id }}" data-date="{{ $ejaculation->ejaculated_date }}"><span class="oi oi-trash" data-toggle="tooltip" data-placement="bottom" title="削除"></span></a>
diff --git a/resources/views/user/stats.blade.php b/resources/views/user/stats.blade.php
index b0ef760..b1f135e 100644
--- a/resources/views/user/stats.blade.php
+++ b/resources/views/user/stats.blade.php
@@ -1,7 +1,7 @@
 @extends('user.base')
 
 @section('tab-content')
-@if ($user->is_protected && !(Auth::check() && $user->id === Auth::user()->id))
+@if ($user->is_protected && !$user->isMe())
     <p class="mt-4">
         <span class="oi oi-lock-locked"></span> このユーザはチェックイン履歴を公開していません。
     </p>