diff --git a/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.test.tsx b/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.test.tsx
index 63ded284a..578610972 100644
--- a/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.test.tsx
+++ b/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.test.tsx
@@ -417,7 +417,7 @@ describe("<Shrink index /> spec", () => {
     const { queryByText, getByTestId } = renderWithRouter([`${ROUTES.SHRINK_INDEX}?source=test4`]);
 
     await waitFor(() => {
-      expect(queryByText("The source index must be in Green health status.")).not.toBeNull();
+      expect(queryByText("The source index must be in green health status.")).not.toBeNull();
       expect(getByTestId("shrinkIndexConfirmButton")).toHaveAttribute("disabled");
     });
   });
@@ -488,7 +488,7 @@ describe("<Shrink index /> spec", () => {
       getByText("Source index details");
     });
 
-    expect(queryByText("We recommend shrinking index with a Green health status.")).not.toBeNull();
+    expect(queryByText("We recommend shrinking index with a green health status.")).not.toBeNull();
   });
 
   it("shows warning when source index is set to read-only", async () => {
@@ -563,17 +563,6 @@ describe("<Shrink index /> spec", () => {
     });
   });
 
-  it("shows warning when source index's has no index.routing.allocation.require._* setting", async () => {
-    mockApi();
-    const { getByText, queryByText } = renderWithRouter([`${ROUTES.SHRINK_INDEX}?source=test6`]);
-
-    await waitFor(() => {
-      getByText("Source index details");
-    });
-
-    expect(queryByText("A copy of every shard must reside on the same node.")).not.toBeNull();
-  });
-
   it("no warning when source index is ready", async () => {
     mockApi();
     const { getByText, queryByText, getByTestId } = renderWithRouter([`${ROUTES.SHRINK_INDEX}?source=test3`]);
@@ -582,13 +571,12 @@ describe("<Shrink index /> spec", () => {
       getByText("Configure target index");
     });
 
-    expect(queryByText("The source index must be in Green health status.")).toBeNull();
+    expect(queryByText("The source index must be in green health status.")).toBeNull();
     expect(queryByText("Cannot shrink source index with only one primary shard.")).toBeNull();
     expect(queryByText("The source index must block write operations before shrinking.")).toBeNull();
     expect(queryByText("The source index must be open.")).toBeNull();
-    expect(queryByText("We recommend shrinking index with a Green health status.")).toBeNull();
+    expect(queryByText("We recommend shrinking index with a green health status.")).toBeNull();
     expect(queryByText("Index setting [index.blocks.read_only] is [true].")).toBeNull();
-    expect(queryByText("A copy of every shard must reside on the same node.")).toBeNull();
 
     userEvent.type(getByTestId("targetIndexNameInput"), "test3_shrunken");
 
diff --git a/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.tsx b/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.tsx
index 48a3894b6..0f63a52fa 100644
--- a/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.tsx
+++ b/public/pages/ShrinkIndex/container/ShrinkIndex/ShrinkIndex.tsx
@@ -311,10 +311,10 @@ export default class ShrinkIndex extends Component<ShrinkIndexProps, ShrinkIndex
       disableShrinkButton = true;
       sourceIndexNotReadyToShrinkReasons.push(
         <>
-          <EuiCallOut title="The source index must be in Green health status." color="danger" iconType="alert">
+          <EuiCallOut title="The source index must be in green health status." color="danger" iconType="alert">
             <p>
-              The index is in Red health status and may be running operations in the background. We recommend to wait until the index
-              becomes Green to continue shrinking.
+              The index is in red health status and may be running operations in the background. We recommend to wait until the index
+              becomes green to continue shrinking.
             </p>
           </EuiCallOut>
           <EuiSpacer />
@@ -367,7 +367,7 @@ export default class ShrinkIndex extends Component<ShrinkIndexProps, ShrinkIndex
             <EuiCallOut title="The source index must be open." color="danger" iconType="alert">
               <p>
                 You must first open the index before shrinking it. Depending on the size of the source index, this may take additional time
-                to complete. The index will be in the Red state while the index is opening.
+                to complete. The index will be in red health status while the index is opening.
               </p>
               <EuiSpacer />
               <EuiButton
@@ -393,10 +393,10 @@ export default class ShrinkIndex extends Component<ShrinkIndexProps, ShrinkIndex
         if (sourceIndex.health === "yellow") {
           sourceIndexNotReadyToShrinkReasons.push(
             <>
-              <EuiCallOut title="We recommend shrinking index with a Green health status." color="warning" iconType="help">
+              <EuiCallOut title="We recommend shrinking index with a green health status." color="warning" iconType="help">
                 <p>
-                  The source index is in Yellow health status. To prevent issues with initializing the new shrunken index, we recommend
-                  shrinking an index with a Green health status.
+                  The source index is in yellow health status. To prevent issues with initializing the new shrunken index, we recommend
+                  shrinking an index with a green health status.
                 </p>
               </EuiCallOut>
               <EuiSpacer />
@@ -421,34 +421,6 @@ export default class ShrinkIndex extends Component<ShrinkIndexProps, ShrinkIndex
             </>
           );
         }
-
-        // This check may not be accurate in the following cases:
-        // 1. the cluster only has one node, so the source index's primary shards are allocated to the same node.
-        // 2. the primary shards of the source index are just allocated to the same node, not manually.
-        // 3. the user set `index.routing.rebalance.enable` to `none` and then manually move each shard's copy to one node.
-        // In the above cases, the source index does not have a `index.routing.allocation.require._*` setting which can
-        // rellocate one copy of every shard to one node, but it can also execute shrinking successfully if other conditions are met.
-        // But in most cases, source index always have many shards distributed on different node,
-        // so index.routing.allocation.require._*` setting is required.
-        // In above, we just show a warning in the page, it does not affect any button or form.
-        const settings = get(sourceIndexSettings, [sourceIndex.index, "settings"]);
-        let shardsAllocatedToOneNode = false;
-        for (let settingKey in settings) {
-          if (settingKey.startsWith(INDEX_ROUTING_ALLOCATION_SETTING)) {
-            shardsAllocatedToOneNode = true;
-            break;
-          }
-        }
-        if (!shardsAllocatedToOneNode) {
-          sourceIndexNotReadyToShrinkReasons.push(
-            <>
-              <EuiCallOut title="A copy of every shard must reside on the same node." color="warning" iconType="help">
-                <p>For clusters with more than one node, you must allocate a copy of every shard of the source index to the same node.</p>
-              </EuiCallOut>
-              <EuiSpacer />
-            </>
-          );
-        }
       }
     }