diff --git a/frontend-internal/src/lib/components/IssueModal.svelte b/frontend-internal/src/lib/components/IssueModal.svelte
new file mode 100644
index 0000000..a371ebc
--- /dev/null
+++ b/frontend-internal/src/lib/components/IssueModal.svelte
@@ -0,0 +1,230 @@
+<script lang="ts">
+  import { createEventDispatcher } from 'svelte';
+  import { api } from '$lib/utils/api';
+  import { toast } from '$lib/stores/toast';
+
+  export let ticketId: string;
+  export let users: any[] = [];
+
+  const dispatch = createEventDispatcher();
+
+  const PRIORITIES = [
+    { value: 'LOW', label: 'Baja' },
+    { value: 'MEDIUM', label: 'Media' },
+    { value: 'HIGH', label: 'Alta' },
+    { value: 'URGENT', label: 'Urgente' }
+  ];
+
+  let content = '';
+  let priority = 'MEDIUM';
+  let taggedUserIds: string[] = [];
+  let file: File | null = null;
+  let isSubmitting = false;
+  let fileInput: HTMLInputElement;
+
+  function toggleUser(userId: string) {
+    if (taggedUserIds.includes(userId)) {
+      taggedUserIds = taggedUserIds.filter(id => id !== userId);
+    } else {
+      taggedUserIds = [...taggedUserIds, userId];
+    }
+  }
+
+  function handleFileChange(e: Event) {
+    const input = e.target as HTMLInputElement;
+    file = input.files?.[0] ?? null;
+  }
+
+  async function handleSubmit() {
+    if (!content.trim()) {
+      toast.error('El contenido del asunto es obligatorio');
+      return;
+    }
+
+    isSubmitting = true;
+    try {
+      // Si hay archivo usamos FormData, si no JSON normal
+      if (file) {
+        const formData = new FormData();
+        formData.append('content', content.trim());
+        formData.append('priority', priority);
+        taggedUserIds.forEach(id => formData.append('tagged_user_ids', id));
+        formData.append('file', file);
+        await api.postForm(`/tickets/${ticketId}/issues`, formData);
+      } else {
+        await api.post(`/tickets/${ticketId}/issues`, {
+          content: content.trim(),
+          priority,
+          tagged_user_ids: taggedUserIds
+        });
+      }
+
+      toast.success('Asunto creado correctamente');
+      dispatch('created');
+      dispatch('close');
+    } catch (e) {
+      toast.error(e.message || 'Error al crear el asunto');
+    } finally {
+      isSubmitting = false;
+    }
+  }
+
+  function handleClose() {
+    dispatch('close');
+  }
+</script>
+
+<!-- Overlay -->
+<div class="fixed inset-0 z-50 overflow-y-auto">
+  <div class="flex min-h-full items-center justify-center p-4">
+    <!-- Backdrop -->
+    <div
+      class="fixed inset-0 bg-gray-500 bg-opacity-75 transition-opacity"
+      on:click={handleClose}
+      role="button"
+      tabindex="-1"
+      on:keydown={(e) => e.key === 'Escape' && handleClose()}
+    />
+
+    <!-- Modal -->
+    <div class="relative bg-white rounded-lg shadow-xl w-full max-w-lg z-10">
+      <!-- Header -->
+      <div class="flex items-center justify-between px-6 py-4 border-b border-gray-200">
+        <h3 class="text-lg font-semibold text-gray-900">Crear Asunto</h3>
+        <button
+          type="button"
+          on:click={handleClose}
+          class="text-gray-400 hover:text-gray-500"
+        >
+          <span class="sr-only">Cerrar</span>
+          <svg class="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
+          </svg>
+        </button>
+      </div>
+
+      <!-- Body -->
+      <div class="px-6 py-5 space-y-5">
+
+        <!-- Contenido -->
+        <div>
+          <label class="block text-sm font-medium text-gray-700 mb-1">
+            Descripción del asunto <span class="text-red-500">*</span>
+          </label>
+          <textarea
+            rows="4"
+            bind:value={content}
+            disabled={isSubmitting}
+            placeholder="Describe el asunto de escalación..."
+            class="block w-full rounded-md border border-gray-300 shadow-sm
+                   focus:border-blue-500 focus:ring-blue-500 sm:text-sm p-2
+                   disabled:opacity-50"
+          />
+        </div>
+
+        <!-- Prioridad -->
+        <div>
+          <label class="block text-sm font-medium text-gray-700 mb-1">Prioridad</label>
+          <select
+            bind:value={priority}
+            disabled={isSubmitting}
+            class="block w-full rounded-md border border-gray-300 shadow-sm
+                   focus:border-blue-500 focus:ring-blue-500 sm:text-sm p-2
+                   disabled:opacity-50"
+          >
+            {#each PRIORITIES as p}
+              <option value={p.value}>{p.label}</option>
+            {/each}
+          </select>
+        </div>
+
+        <!-- Usuarios a etiquetar -->
+        {#if users.length > 0}
+          <div>
+            <label class="block text-sm font-medium text-gray-700 mb-2">
+              Etiquetar usuarios
+            </label>
+            <div class="max-h-40 overflow-y-auto border border-gray-200 rounded-md divide-y divide-gray-100">
+              {#each users as user}
+                <label class="flex items-center gap-3 px-3 py-2 hover:bg-gray-50 cursor-pointer">
+                  <input
+                    type="checkbox"
+                    checked={taggedUserIds.includes(user.id)}
+                    on:change={() => toggleUser(user.id)}
+                    disabled={isSubmitting}
+                    class="h-4 w-4 rounded border-gray-300 text-blue-600
+                           focus:ring-blue-500 disabled:opacity-50"
+                  />
+                  <div class="flex flex-col">
+                    <span class="text-sm font-medium text-gray-900">
+                      {user.first_name} {user.last_name}
+                    </span>
+                    <span class="text-xs text-gray-500">{user.email}</span>
+                  </div>
+                </label>
+              {/each}
+            </div>
+            {#if taggedUserIds.length > 0}
+              <p class="text-xs text-blue-600 mt-1">
+                {taggedUserIds.length} usuario{taggedUserIds.length > 1 ? 's' : ''} seleccionado{taggedUserIds.length > 1 ? 's' : ''}
+              </p>
+            {/if}
+          </div>
+        {/if}
+
+        <!-- Adjunto -->
+        <div>
+          <label class="block text-sm font-medium text-gray-700 mb-1">
+            Adjunto (opcional)
+          </label>
+          <input
+            bind:this={fileInput}
+            type="file"
+            on:change={handleFileChange}
+            disabled={isSubmitting}
+            class="block w-full text-sm text-gray-500
+                   file:mr-4 file:py-2 file:px-4 file:rounded-md
+                   file:border-0 file:text-sm file:font-medium
+                   file:bg-blue-50 file:text-blue-700
+                   hover:file:bg-blue-100 disabled:opacity-50"
+          />
+          {#if file}
+            <p class="text-xs text-gray-500 mt-1">{file.name}</p>
+          {/if}
+        </div>
+      </div>
+
+      <!-- Footer -->
+      <div class="flex justify-end gap-3 px-6 py-4 border-t border-gray-200">
+        <button
+          type="button"
+          on:click={handleClose}
+          disabled={isSubmitting}
+          class="px-4 py-2 text-sm font-medium text-gray-700 bg-white border
+                 border-gray-300 rounded-md shadow-sm hover:bg-gray-50
+                 disabled:opacity-50"
+        >
+          Cancelar
+        </button>
+        <button
+          type="button"
+          on:click={handleSubmit}
+          disabled={isSubmitting || !content.trim()}
+          class="px-4 py-2 text-sm font-medium text-white bg-blue-700 border
+                 border-transparent rounded-md shadow-sm hover:bg-blue-800
+                 focus:outline-none focus:ring-2 focus:ring-offset-2
+                 focus:ring-blue-500 disabled:opacity-50"
+        >
+          {#if isSubmitting}
+            <div class="flex items-center gap-2">
+              <div class="animate-spin rounded-full h-4 w-4 border-b-2 border-white" />
+              <span>Creando...</span>
+            </div>
+          {:else}
+            Crear Asunto
+          {/if}
+        </button>
+      </div>
+    </div>
+  </div>
+</div>
\ No newline at end of file
diff --git a/frontend-internal/src/routes/tickets/[id]/+page.svelte b/frontend-internal/src/routes/tickets/[id]/+page.svelte
index 7c3bf9d..95c96b9 100644
--- a/frontend-internal/src/routes/tickets/[id]/+page.svelte
+++ b/frontend-internal/src/routes/tickets/[id]/+page.svelte
@@ -5,8 +5,11 @@
   import { api } from '$lib/utils/api';
   import { onMount } from 'svelte';
   import ParticipantsModal from '$lib/components/ParticipantsModal.svelte';
+  import IssueModal from '$lib/components/IssueModal.svelte';
 
   let showParticipants = false;
+  let showIssueModal = false;
+  let issues = [];
   let ticketId: string;
   let ticket = null;
   let comments = [];
@@ -56,6 +59,7 @@
       comments = commentsData;
       attachments = attachmentsData;
       users = usersData;
+      issues = issuesData;
     } catch (e) {
       toast.error('Error cargando ticket: ' + (e.message || 'Error desconocido'));
     } finally {
@@ -377,15 +381,46 @@
             </div>
 
             <!-- Participantes -->
-            <div class="bg-white shadow rounded-lg">
-            <div class="px-6 py-5 border-b border-gray-200 flex justify-between items-center">
-              <h3 class="text-lg font-semibold text-gray-900">Asunto</h3>
-            <button type="button" on:click={() => showParticipants = true}
-                    class="text-sm text-blue-600 hover:text-blue-700 font-medium">
-                  Gestionar
-            </button>
-          </div>
+          <div class="bg-white shadow rounded-lg">
+  <div class="px-6 py-5 border-b border-gray-200 flex justify-between items-center">
+    <h3 class="text-lg font-semibold text-gray-900">
+      Asuntos {#if issues.length > 0}<span class="text-gray-400 font-normal">({issues.length})</span>{/if}
+    </h3>
+    <button
+      type="button"
+      on:click={() => showIssueModal = true}
+      class="text-sm text-blue-600 hover:text-blue-700 font-medium"
+    >
+      Crear asunto
+    </button>
+  </div>
+  {#if issues.length > 0}
+    <div class="divide-y divide-gray-100">
+      {#each issues as issue}
+        <div class="px-6 py-4">
+          <div class="flex items-start justify-between gap-2">
+            <p class="text-sm text-gray-700 flex-1">{issue.content}</p>
+            <span class="text-xs font-medium px-2 py-0.5 rounded-full bg-gray-100 text-gray-600 shrink-0">
+              {issue.priority}
+            </span>
           </div>
+          {#if issue.tagged_users?.length > 0}
+            <div class="mt-2 flex flex-wrap gap-1">
+              {#each issue.tagged_users as u}
+                <span class="text-xs bg-blue-50 text-blue-700 px-2 py-0.5 rounded-full">
+                  {u.full_name}
+                </span>
+              {/each}
+            </div>
+          {/if}
+          <p class="text-xs text-gray-400 mt-1">{issue.created_by_name}</p>
+        </div>
+      {/each}
+    </div>
+  {:else}
+    <p class="px-6 py-4 text-sm text-gray-500">No hay asuntos creados.</p>
+  {/if}
+</div>
 
             <!-- SLA Information -->
             {#if ticket.sla_response_due || ticket.sla_resolution_due}
@@ -449,4 +484,12 @@
     on:close={() => showParticipants = false}
   />
 {/if}
+{#if showIssueModal && ticket}
+  <IssueModal
+    ticketId={ticket.id}
+    {users}
+    on:close={() => showIssueModal = false}
+    on:created={() => { showIssueModal = false; loadData(); }}
+  />
+{/if}
 </div>