diff --git a/migrations/Version20250120141313.php b/migrations/Version20250120141313.php
new file mode 100644
index 000000000..df4bc3fc2
--- /dev/null
+++ b/migrations/Version20250120141313.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20250120141313 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add is_sanitized column to suivi';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE suivi ADD is_sanitized TINYINT(1) NOT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE suivi DROP is_sanitized');
+    }
+}
diff --git a/src/Command/SanitizeSuivisCommand.php b/src/Command/SanitizeSuivisCommand.php
new file mode 100644
index 000000000..16a722f09
--- /dev/null
+++ b/src/Command/SanitizeSuivisCommand.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace App\Command;
+
+use App\Manager\HistoryEntryManager;
+use App\Repository\SuiviRepository;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Console\Attribute\AsCommand;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Helper\ProgressBar;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use Symfony\Component\DependencyInjection\Attribute\Autowire;
+use Symfony\Component\HtmlSanitizer\HtmlSanitizerInterface;
+
+#[AsCommand(
+    name: 'app:sanitize-suivis',
+    description: 'Sanitize suivis',
+)]
+class SanitizeSuivisCommand extends Command
+{
+    private const int BATCH_SIZE = 1000;
+
+    public function __construct(
+        private readonly SuiviRepository $suiviRepository,
+        private readonly EntityManagerInterface $entityManager,
+        #[Autowire(service: 'html_sanitizer.sanitizer.app.message_sanitizer')]
+        private readonly HtmlSanitizerInterface $htmlSanitizer,
+        private readonly HistoryEntryManager $historyEntryManager,
+    ) {
+        parent::__construct();
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output): int
+    {
+        $this->historyEntryManager->removeEntityListeners();
+        $io = new SymfonyStyle($input, $output);
+        $countAll = $this->suiviRepository->count(['isSanitized' => false]);
+        $io->info(sprintf('Found %s suivis to sanitize', $countAll));
+        $suivis = $this->suiviRepository->findBy(['isSanitized' => false], ['createdAt' => 'DESC'], 50000);
+        $i = 0;
+        $progressBar = new ProgressBar($output, \count($suivis));
+        $progressBar->start();
+        foreach ($suivis as $suivi) {
+            $suivi->setDescription($this->htmlSanitizer->sanitize($suivi->getDescription(false, false)));
+            $suivi->setIsSanitized(true);
+            ++$i;
+            $progressBar->advance();
+            if (0 === $i % self::BATCH_SIZE) {
+                $this->entityManager->flush();
+            }
+        }
+        $this->entityManager->flush();
+        $progressBar->finish();
+        $io->newLine();
+        $io->success(sprintf('Sanitized %s/%s suivis', $i, $countAll));
+
+        return Command::SUCCESS;
+    }
+}
diff --git a/src/Entity/Suivi.php b/src/Entity/Suivi.php
index 91fb10977..52f4b6136 100644
--- a/src/Entity/Suivi.php
+++ b/src/Entity/Suivi.php
@@ -73,10 +73,14 @@ class Suivi implements EntityHistoryInterface
     #[ORM\Column(nullable: true)]
     private ?array $originalData = null;
 
+    #[ORM\Column]
+    private ?bool $isSanitized = null;
+
     public function __construct()
     {
         $this->createdAt = new \DateTimeImmutable();
         $this->isPublic = false;
+        $this->isSanitized = true;
     }
 
     public function getId(): ?int
@@ -142,8 +146,11 @@ public function getCreatedByLabel(): ?string
         return 'OCCUPANT : '.strtoupper($this->getSignalement()->getNomOccupant()).' '.ucfirst($this->getSignalement()->getPrenomOccupant());
     }
 
-    public function getDescription($transformHtml = true): ?string
+    public function getDescription($transformHtml = true, $originalData = false): ?string
     {
+        if ($originalData) {
+            return $this->description;
+        }
         if (null !== $this->deletedAt) {
             return self::DESCRIPTION_DELETED.' '.$this->deletedAt->format('d/m/Y');
         }
@@ -262,4 +269,16 @@ public function getHistoryRegisteredEvent(): array
     {
         return [HistoryEntryEvent::CREATE, HistoryEntryEvent::UPDATE, HistoryEntryEvent::DELETE];
     }
+
+    public function getIsSanitized(): ?bool
+    {
+        return $this->isSanitized;
+    }
+
+    public function setIsSanitized(bool $isSanitized): static
+    {
+        $this->isSanitized = $isSanitized;
+
+        return $this;
+    }
 }
diff --git a/src/Manager/SuiviManager.php b/src/Manager/SuiviManager.php
index b04265c3f..e3c5c4b4a 100644
--- a/src/Manager/SuiviManager.php
+++ b/src/Manager/SuiviManager.php
@@ -14,6 +14,8 @@
 use App\Service\Sanitizer;
 use Doctrine\Persistence\ManagerRegistry;
 use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\DependencyInjection\Attribute\Autowire;
+use Symfony\Component\HtmlSanitizer\HtmlSanitizerInterface;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 
 class SuiviManager extends Manager
@@ -24,6 +26,8 @@ public function __construct(
         private readonly SignalementUpdatedListener $signalementUpdatedListener,
         private readonly Security $security,
         private readonly DesordreCritereRepository $desordreCritereRepository,
+        #[Autowire(service: 'html_sanitizer.sanitizer.app.message_sanitizer')]
+        private readonly HtmlSanitizerInterface $htmlSanitizer,
         string $entityName = Suivi::class,
     ) {
         parent::__construct($managerRegistry, $entityName);
@@ -42,7 +46,7 @@ public function createSuivi(
         $suivi = (new Suivi())
         ->setCreatedBy($user)
         ->setSignalement($signalement)
-        ->setDescription($description)
+        ->setDescription($this->htmlSanitizer->sanitize($description))
         ->setType($type)
         ->setIsPublic($isPublic)
         ->setContext($context)
diff --git a/templates/back/notifications/index.html.twig b/templates/back/notifications/index.html.twig
index f917206e1..e65ca2720 100755
--- a/templates/back/notifications/index.html.twig
+++ b/templates/back/notifications/index.html.twig
@@ -69,10 +69,10 @@
                     </td>
                     <td>{{ notification.suivi.createdAt|format_datetime(locale='fr', timezone=territory_timezone, pattern='d MMMM yyyy à HH:mm:ss') }}</td>
                     <td class="word-wrap-anywhere">{{ notification.suivi.description
-                        |replace({'&t=___TOKEN___':'/'~notification.signalement.uuid})
-                        |replace({'?t=___TOKEN___':'/'~notification.signalement.uuid})
-                        |replace({'?folder=_up':'/'~notification.signalement.uuid~'?variant=resize'})
-                        |sanitize_html('app.message_sanitizer') }}
+                        |replace({'&amp;t&#61;___TOKEN___':'/'~notification.signalement.uuid})
+                        |replace({'?t&#61;___TOKEN___':'/'~notification.signalement.uuid})
+                        |replace({'?folder&#61;_up':'/'~notification.signalement.uuid~'?variant=resize'})
+                        |raw }}
                     </td>
                     <td>{{ notification.suivi.createdBy ? notification.suivi.createdBy.nomComplet : notification.signalement.nomOccupant|upper~' '~notification.signalement.prenomOccupant|capitalize }}</td>
                     <td class="fr-text--right fr-ws-nowrap">
diff --git a/templates/back/signalement/view/suivis.html.twig b/templates/back/signalement/view/suivis.html.twig
index db3622015..005c880bf 100755
--- a/templates/back/signalement/view/suivis.html.twig
+++ b/templates/back/signalement/view/suivis.html.twig
@@ -61,17 +61,11 @@
         {% else %}
             <div class="fr-col-7 bloc-suivi-content-row fr-pl-3v">
         {% endif %}
-            {#{{ dump(suivi.description
-                |replace({'&t=___TOKEN___':'/'~signalement.uuid})
-                |replace({'?t=___TOKEN___':'/'~signalement.uuid})
-                |replace({'?folder=_up':'/'~signalement.uuid~'?variant=resize'})
-                |sanitize_html('app.message_sanitizer'))
-            }}#}
             {{ suivi.description
-                |replace({'&t=___TOKEN___':'/'~signalement.uuid})
-                |replace({'?t=___TOKEN___':'/'~signalement.uuid})
-                |replace({'?folder=_up':'/'~signalement.uuid~'?variant=resize'})
-                |sanitize_html('app.message_sanitizer')
+                |replace({'&amp;t&#61;___TOKEN___':'/'~signalement.uuid})
+                |replace({'?t&#61;___TOKEN___':'/'~signalement.uuid})
+                |replace({'?foldert&#61_up':'/'~signalement.uuid~'?variant=resize'})
+                |raw
             }}
         </div>
         <div class="fr-col-2">
diff --git a/templates/front/_partials/_suivi_signalement_tab_suivi.html.twig b/templates/front/_partials/_suivi_signalement_tab_suivi.html.twig
index 3b660782e..ac9858fc0 100755
--- a/templates/front/_partials/_suivi_signalement_tab_suivi.html.twig
+++ b/templates/front/_partials/_suivi_signalement_tab_suivi.html.twig
@@ -24,7 +24,7 @@
 				</strong>
 			</div>
 			<div class="message-box-message">
-				{{ suivi.description|replace({'___TOKEN___':csrf_token('suivi_signalement_ext_file_view')})|sanitize_html('app.message_sanitizer') }}
+				{{ suivi.description|replace({'___TOKEN___':csrf_token('suivi_signalement_ext_file_view')})|raw }}
 			</div>
 		</div>
 	{% endfor %}
diff --git a/templates/pdf/signalement.html.twig b/templates/pdf/signalement.html.twig
index c8aefe5c1..8dbdfd1d7 100755
--- a/templates/pdf/signalement.html.twig
+++ b/templates/pdf/signalement.html.twig
@@ -625,7 +625,7 @@
                                 {% endif %}
                                 <small>{{ suivi.createdAt|date('d/m/Y') }}</small>
                             </td>
-                            <td style="padding:.5rem;width:85%">  {{ suivi.description|sanitize_html('app.message_sanitizer') }}</td>
+                            <td style="padding:.5rem;width:85%">  {{ suivi.description|raw }}</td>
                         </tr>
                     {% endfor %}
                 </table>
diff --git a/tests/Functional/Controller/Back/SignalementActionControllerTest.php b/tests/Functional/Controller/Back/SignalementActionControllerTest.php
index f2cd22400..0bdbb4636 100644
--- a/tests/Functional/Controller/Back/SignalementActionControllerTest.php
+++ b/tests/Functional/Controller/Back/SignalementActionControllerTest.php
@@ -124,7 +124,7 @@ public function testDeleteSuivi(): void
         $route = $this->router->generate('back_signalement_delete_suivi', ['uuid' => $signalement->getUuid()]);
         $this->client->request('GET', $route);
 
-        $description = 'Un petit message de rappel afin d\'y revenir plus tard';
+        $description = 'Un petit message de rappel afin d&#039;y revenir plus tard';
         $suivi = $this->suiviRepository->findOneBy(['description' => $description]);
 
         $this->client->request(
diff --git a/tests/Functional/Manager/SuiviManagerTest.php b/tests/Functional/Manager/SuiviManagerTest.php
index 937d79a8c..8d25ca046 100644
--- a/tests/Functional/Manager/SuiviManagerTest.php
+++ b/tests/Functional/Manager/SuiviManagerTest.php
@@ -13,6 +13,7 @@
 use Doctrine\Persistence\ManagerRegistry;
 use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
 use Symfony\Bundle\SecurityBundle\Security;
+use Symfony\Component\HtmlSanitizer\HtmlSanitizerInterface;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Symfony\Component\Security\Core\User\UserInterface;
 
@@ -24,6 +25,7 @@ class SuiviManagerTest extends KernelTestCase
     private Security $security;
     private UrlGeneratorInterface $urlGenerator;
     private DesordreCritereRepository $desordreCritereRepository;
+    private HtmlSanitizerInterface $htmlSanitizerInterface;
 
     protected function setUp(): void
     {
@@ -33,6 +35,7 @@ protected function setUp(): void
         $this->security = static::getContainer()->get(Security::class);
         $this->urlGenerator = static::getContainer()->get(UrlGeneratorInterface::class);
         $this->desordreCritereRepository = static::getContainer()->get(DesordreCritereRepository::class);
+        $this->htmlSanitizerInterface = static::getContainer()->get(HtmlSanitizerInterface::class);
     }
 
     public function testCreateSuivi(): void
@@ -43,6 +46,7 @@ public function testCreateSuivi(): void
             $this->signalementUpdatedListener,
             $this->security,
             $this->desordreCritereRepository,
+            $this->htmlSanitizerInterface,
             Suivi::class,
         );
 
@@ -74,9 +78,10 @@ public function testCreateSuivi(): void
         $this->assertEquals(Suivi::TYPE_PARTNER, $suivi->getType());
         $this->assertNotEquals($countSuivisBeforeCreate, $countSuivisAfterCreate);
         $this->assertInstanceOf(Suivi::class, $suivi);
-        $desc = 'Le signalement a été cloturé pour test avec le motif suivant <br><strong>Non décence</strong><br><strong>Desc. : </strong>Lorem ipsum suivi sit amet, consectetur adipiscing elit.';
+        $desc = 'Le signalement a été cloturé pour test avec le motif suivant <br /><strong>Non décence</strong><br /><strong>Desc. : </strong>Lorem ipsum suivi sit amet, consectetur adipiscing elit.';
         $this->assertEquals($desc, $suivi->getDescription());
         $this->assertTrue($suivi->getIsPublic());
+        $this->assertTrue($suivi->getIsSanitized());
         $this->assertInstanceOf(UserInterface::class, $suivi->getCreatedBy());
     }
 }