Elderly people can’t stand up because of low blood sugar, meniscus injury, knee degeneration and other factors. 1. hypoglycemia: the elderly for a long time failed to eat, their own diabetes using hypoglycemic drugs and other factors can cause hypoglycemia, leading to palpitations, sweating, weakness and other phenomena, resulting in the elderly squatting and can not stand up. 2. Meniscus injury: meniscus injury can also lead to the elderly squatting and can not stand up. In addition, it can be accompanied by knee pain, swelling and other phenomena. 3. Knee degeneration: it is a common disease among the elderly, mostly related to the degeneration of articular cartilage, overweight and other factors, at the early stage of the disease, the patient is conscious of a slight dull pain. With the development of the disease, the symptoms are gradually obvious, patients can appear joint enlargement, joint pain, limited activities and other phenomena, which leads to the elderly squatting and can not stand up. In addition, lumbar disc herniation can also lead to the elderly squatting and can not stand up, it is recommended that the patient go to the hospital in a timely manner, clear the cause of the disease, and then actively carry out the treatment.