The Depression Self-Assessment Scale (DSS) is a simple and clear expression of the patient’s own subjective symptoms. The scores are relatively accurate and can be used as a reference as long as the patient has normal intelligence and is able to express himself truthfully. The depression self-assessment scale is divided into 4 levels: below 52 points, it is normal; 52-62 points, it is mild depression; 63-72 points, it is moderate depression; and above 73 points, it is severe depression. For mildly depressed patients, adjustments can be made such as psychological adjustment, self-compassion, and improvement of poor lifestyles. For patients with moderate or severe depression, medication is needed, together with psychological counseling and physical therapy, and the patients themselves should maintain optimism, ensure sleep, appropriate exercise and more communication with family members.