The odor of the elderly may be related to personal and living environment hygiene, diabetes, hyperthyroidism and other disease factors, can be removed by improving hygiene, active treatment of the original disease. 1. Improve hygiene: the odor of the elderly may be due to sweating more, wash less often, change clothes in a timely manner, it is recommended that the elderly diligently brush their teeth, change clothes and take a bath, if necessary, family members to assist in bathing; change bedding, pillows and other items, and open the windows of the house at regular intervals to keep the indoor air fresh. 2. Active treatment of primary disease: some diseases may lead to odor in the elderly, such as diabetes, and poor blood sugar control may lead to diabetic foot, liver disease and other complications, resulting in the emergence of vesicles or urine odor; suffering from hyperthyroidism, may lead to accelerated metabolism, excessive sweating, resulting in the odor of sweat. Patients need to actively treat the primary disease. In addition, for long-term bed-ridden elderly skin infections, ulcers, or even bedsores and other diseases, can also lead to odor, it is recommended to actively improve the hygiene situation at the same time regular comprehensive check-ups, problems in a timely manner to seek medical attention, in order to clarify the cause of the disease, targeted treatment.