What causes sudden weakness in all four limbs, legs and feet giving way, feeling weak and unable to stand up? What should be done?

Jun 05, 2023 Source: Cainiu Health

Dr. Yang Shuwen

Introduction

Sudden weakness in the limbs, with legs feeling weak and unable to stand, is commonly caused by physiological factors as well as pathological conditions such as hypotension and anemia. It is recommended to choose appropriate treatment methods accordingly. Additionally, this symptom may also result from hypokalemia, cerebral hemorrhage, or cerebral infarction. Patients are advised to seek timely medical attention at a hospital and undergo necessary examinations to determine the exact underlying cause.

Sudden weakness in the limbs, with legs feeling weak and unable to stand, is commonly seen in physiological causes as well as pathological conditions such as hypotension and anemia. It is recommended to choose appropriate treatment methods. Specific analysis is as follows:

1. Physiological Causes

Excessive fatigue, such as from intense physical labor or strenuous exercise, can lead to bodily exhaustion, resulting in symptoms of limb weakness and leg fatigue. In such cases, symptoms usually improve after adequate rest.

2. Pathological Causes

1) Hypotension

Hypotension refers to a state in which systemic arterial pressure is below normal. It often occurs in individuals who are underweight or have poor dietary intake, leading to the aforementioned symptoms. Additional symptoms may include dizziness, blurred vision, nausea, and other discomforts. Patients should follow medical advice and take medications such as midodrine hydrochloride tablets or Shenqi Yangxue Capsules.

2) Anemia

Anemia reduces the number of red blood cells in circulation, thereby decreasing the number of oxygen-carrying cells, which leads to symptoms such as dizziness and generalized weakness. In such cases, patients need red blood cell transfusions as directed by a physician to improve their condition.

In addition, this condition may also be caused by hypokalemia, cerebral hemorrhage, cerebral infarction, and other disorders. It is recommended that patients seek timely medical evaluation at a hospital and undergo necessary examinations to determine the exact underlying cause.

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