What causes leg weakness and trembling?
Sep 07, 2022
Source: Cainiu Health
Dr. Yang Jun
Introduction
Leg weakness and tremors may be caused by physiological factors or nerve damage. Intracranial conditions such as viral encephalopathy or cerebral hemorrhage can exert pressure on nerves, triggering these symptoms, which are often accompanied by adverse reactions like nausea and headache. Additionally, being a picky eater in daily life may lead to nutritional imbalances, resulting in deficiencies of vitamins or calcium, which can also cause leg weakness and tremors.
Leg weakness and trembling may be caused by physiological factors or conditions such as nerve damage, intracranial diseases, and nutritional deficiencies.
1. Physiological Causes
In elderly patients, aging may lead to a gradual decline in bodily functions, resulting in lower limb weakness and leg tremors. Additionally, engaging suddenly in intense physical activity may overwork the muscles and cause these symptoms.
2. Nerve Damage
Nerves that control the muscles of the lower limbs—such as peripheral nerves and nerve roots—may be damaged due to external physical trauma or disease. This damage can interfere with normal muscle function, leading to leg weakness and trembling.
3. Intracranial Diseases
Conditions such as viral encephalitis, cerebral hemorrhage, and cerebral infarction may cause brain injury, thereby compressing nerves and triggering the aforementioned symptoms. These cases are often accompanied by additional adverse reactions such as nausea and headache.
4. Nutritional Deficiency
If a person has a highly selective diet, unbalanced nutrient intake may lead to deficiencies in essential nutrients like vitamins and calcium, which could result in leg weakness and trembling.
