Most cases of skin itching are not directly related to cancer. Itchy skin is mainly associated with allergies or dry skin, and a reduction in the secretion of sebaceous glands. Some patients experience itching due to long-term diabetes, and it is most commonly seen in the elderly. Some elderly people also develop chronic itching due to frequently bathing in hot water. Once itchy skin occurs, treatment at the dermatology department of a formal hospital with anti-allergy medication is generally sufficient. Avoid bathing in overly hot water, spicy and irritant foods, and staying up late. After bathing, it is advisable to use a moisturizer extensively. While this condition generally has no correlation with cancer, some patients diagnosed with cancer may also experience itching, though it is not related to the simple presence of itchy skin.