diff --git a/rules-tests/DeadCode/Rector/Property/RemoveDefaultValueFromAssignedPropertyRector/Fixture/skip_assign_in_loop.php.inc b/rules-tests/DeadCode/Rector/Property/RemoveDefaultValueFromAssignedPropertyRector/Fixture/skip_assign_in_loop.php.inc
new file mode 100644
index 00000000000..4540d611d3a
--- /dev/null
+++ b/rules-tests/DeadCode/Rector/Property/RemoveDefaultValueFromAssignedPropertyRector/Fixture/skip_assign_in_loop.php.inc
@@ -0,0 +1,23 @@
+<?php
+
+namespace Rector\Tests\DeadCode\Rector\Property\RemoveDefaultValueFromAssignedPropertyRector\Fixture;
+
+use stdClass;
+
+final class SkipAssignInLoop
+{
+    public int $x = 0;
+
+    /**
+     * @param iterable<int> $items
+     */
+    public function __construct(iterable $items) {
+        foreach ($items as $item) {
+            if ($item > 5) {
+                $this->x = 1;
+            } else {
+                $this->x = -1;
+            }
+        }
+    }
+}
diff --git a/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php b/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php
index 2061e95a62b..52229f55273 100644
--- a/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php
+++ b/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php
@@ -62,7 +62,7 @@ public function isPropertyAssigned(ClassLike $classLike, string $propertyName, b
                 Node $node
             ) use ($propertyName, &$isAssignedInConstructor, $allowConditional): ?int {
                 if ($this->isIfElseAssign($node, $propertyName)) {
-                    $isAssignedInConstructor = true;
+                    $isAssignedInConstructor = ! (bool) $node->getAttribute(AttributeKey::IS_IN_LOOP_OR_SWITCH);
                     return NodeVisitor::STOP_TRAVERSAL;
                 }