diff --git a/rules/prefer-node-append.js b/rules/prefer-node-append.js
index 9144a8ba9e..4b69928c1d 100644
--- a/rules/prefer-node-append.js
+++ b/rules/prefer-node-append.js
@@ -1,43 +1,16 @@
 'use strict';
 const getDocumentationUrl = require('./utils/get-documentation-url');
+const isValueUsed = require('./utils/is-value-used');
 
 const getMethodName = memberExpression => memberExpression.property.name;
 
-const ignoredParentTypes = [
-	'ArrayExpression',
-	'IfStatement',
-	'MemberExpression',
-	'Property',
-	'ReturnStatement',
-	'VariableDeclarator'
-];
-
-const ignoredGrandparentTypes = [
-	'ExpressionStatement'
-];
-
 const create = context => {
 	return {
 		CallExpression(node) {
-			const {
-				callee,
-				parent
-			} = node;
-
-			const {
-				parent: grandparent
-			} = (parent || {});
+			const {callee} = node;
 
 			if (callee.type === 'MemberExpression' && getMethodName(callee) === 'appendChild') {
-				let fix = fixer => fixer.replaceText(callee.property, 'append');
-
-				if (parent && ignoredParentTypes.includes(parent.type)) {
-					fix = undefined;
-				}
-
-				if (grandparent && ignoredGrandparentTypes.includes(grandparent.type)) {
-					fix = undefined;
-				}
+				const fix = isValueUsed(node) ? undefined : fixer => fixer.replaceText(callee.property, 'append');
 
 				context.report({
 					node,
diff --git a/rules/prefer-node-remove.js b/rules/prefer-node-remove.js
index 280c09d3fe..b5d6a28079 100644
--- a/rules/prefer-node-remove.js
+++ b/rules/prefer-node-remove.js
@@ -1,5 +1,6 @@
 'use strict';
 const getDocumentationUrl = require('./utils/get-documentation-url');
+const isValueUsed = require('./utils/is-value-used');
 
 const getMethodName = callee => {
 	const {property} = callee;
@@ -65,10 +66,12 @@ const create = context => {
 				const argumentName = getArgumentName(node.arguments);
 
 				if (argumentName) {
+					const fix = isValueUsed(node) ? undefined : fixer => fixer.replaceText(node, `${argumentName}.remove()`);
+
 					context.report({
 						node,
 						message: `Prefer \`${argumentName}.remove()\` over \`${callerName}.removeChild(${argumentName})\`.`,
-						fix: fixer => fixer.replaceText(node, `${argumentName}.remove()`)
+						fix
 					});
 				}
 			}
diff --git a/rules/utils/is-value-used.js b/rules/utils/is-value-used.js
new file mode 100644
index 0000000000..f468361a48
--- /dev/null
+++ b/rules/utils/is-value-used.js
@@ -0,0 +1,25 @@
+'use strict';
+
+const ignoredParentTypes = [
+	'ArrayExpression',
+	'AssignmentExpression',
+	'IfStatement',
+	'MemberExpression',
+	'Property',
+	'ReturnStatement',
+	'VariableDeclarator'
+];
+
+const ignoredGrandparentTypes = [
+	'ExpressionStatement'
+];
+
+module.exports = function (node) {
+	const {parent} = node;
+	const {
+		parent: grandparent
+	} = (parent || {});
+
+	return (parent && ignoredParentTypes.includes(parent.type)) ||
+		(grandparent && ignoredGrandparentTypes.includes(grandparent.type));
+};
diff --git a/test/integration/eslint-config-unicorn-tester/package-lock.json b/test/integration/eslint-config-unicorn-tester/package-lock.json
index 55060d39ca..f52f37b93c 100644
--- a/test/integration/eslint-config-unicorn-tester/package-lock.json
+++ b/test/integration/eslint-config-unicorn-tester/package-lock.json
@@ -394,7 +394,7 @@
         "lodash.kebabcase": "^4.1.1",
         "lodash.snakecase": "^4.1.1",
         "lodash.upperfirst": "^4.3.1",
-        "read-pkg-up": "^7.0.0",
+        "read-pkg-up": "^7.0.1",
         "regexp-tree": "^0.1.17",
         "regexpp": "^3.0.0",
         "reserved-words": "^0.1.2",
diff --git a/test/prefer-node-append.js b/test/prefer-node-append.js
index 5a7324b86c..ea2fb3db8a 100644
--- a/test/prefer-node-append.js
+++ b/test/prefer-node-append.js
@@ -118,6 +118,11 @@ ruleTester.run('prefer-node-append', rule, {
 			code: 'const foo = () => { return node.appendChild(child); }',
 			output: 'const foo = () => { return node.appendChild(child); }',
 			errors: [error]
+		},
+		{
+			code: 'foo(bar = node.appendChild(child))',
+			output: 'foo(bar = node.appendChild(child))',
+			errors: [error]
 		}
 	]
 });
diff --git a/test/prefer-node-remove.js b/test/prefer-node-remove.js
index f1925f8d75..eea01bf47b 100644
--- a/test/prefer-node-remove.js
+++ b/test/prefer-node-remove.js
@@ -90,6 +90,96 @@ ruleTester.run('prefer-node-remove', rule, {
 			'foo.remove()',
 			'parentElement',
 			'foo'
+		),
+		invalidTestCase(
+			'if (foo.parentNode.removeChild(foo)) {}',
+			'if (foo.parentNode.removeChild(foo)) {}',
+			'parentNode',
+			'foo'
+		),
+		invalidTestCase(
+			'var removed = foo.parentNode.removeChild(foo);',
+			'var removed = foo.parentNode.removeChild(foo);',
+			'parentNode',
+			'foo'
+		),
+		invalidTestCase(
+			'const foo = node.parentNode.removeChild(child);',
+			'const foo = node.parentNode.removeChild(child);',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'console.log(node.parentNode.removeChild(child));',
+			'console.log(node.parentNode.removeChild(child));',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'node.parentNode.removeChild(child) || "foo";',
+			'node.parentNode.removeChild(child) || "foo";',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'node.parentNode.removeChild(child) + 0;',
+			'node.parentNode.removeChild(child) + 0;',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'node.parentNode.removeChild(child) + 0;',
+			'node.parentNode.removeChild(child) + 0;',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'+node.parentNode.removeChild(child);',
+			'+node.parentNode.removeChild(child);',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'node.parentNode.removeChild(child) ? "foo" : "bar";',
+			'node.parentNode.removeChild(child) ? "foo" : "bar";',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'if (node.parentNode.removeChild(child)) {}',
+			'if (node.parentNode.removeChild(child)) {}',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'const foo = [node.parentNode.removeChild(child)]',
+			'const foo = [node.parentNode.removeChild(child)]',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'const foo = { bar: node.parentNode.removeChild(child) }',
+			'const foo = { bar: node.parentNode.removeChild(child) }',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'function foo() { return node.parentNode.removeChild(child); }',
+			'function foo() { return node.parentNode.removeChild(child); }',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'const foo = () => { return node.parentNode.removeChild(child); }',
+			'const foo = () => { return node.parentNode.removeChild(child); }',
+			'parentNode',
+			'child'
+		),
+		invalidTestCase(
+			'foo(bar = node.parentNode.removeChild(child))',
+			'foo(bar = node.parentNode.removeChild(child))',
+			'parentNode',
+			'child'
 		)
 	]
 });