Final answer:
Itching as a symptom can be related to dermatological conditions of the integumentary system, such as eczema, and is typically associated with allergic reactions and skin disorders.
Step-by-step explanation:
If the symptom of a disorder is itching, it would be classified as a dermatological symptom related to the integumentary system. For example, eczema is a common skin disorder that presents as dry, itchy patches of skin, which can resemble rashes. This condition is an allergic reaction and can be accompanied by swelling of the skin, flaking, and in severe cases, bleeding.
Similarly, allergies can cause various symptoms, including itching, due to the immune system's inflammatory response to harmless antigens. In clinical practice, doctors may identify the causes of a patient's allergic symptoms through patient history or skin testing for common allergens.