What causes body aches and weakness in the legs and feet?

Generalized body aches and weakness in the legs and feet may be caused by physiological factors as well as pathological conditions, such as viral influenza or potassium deficiency. The specific causes are analyzed as follows:

1. Physiological Causes

This is usually due to prolonged intense physical activity, which leads to lactic acid buildup in the body, resulting in muscle soreness and fatigue. In such cases, patients generally do not need to worry excessively. Symptoms can be relieved through appropriate massage and adequate rest.

2. Pathological Causes

1) Viral Influenza

This typically occurs when the body's immunity decreases, making it susceptible to viral infections that cause upper respiratory tract infections. Patients may experience symptoms such as fever, fatigue, and body aches. Under medical guidance, patients can take medications like aspirin vitamin C effervescent tablets or antiviral granules for treatment.

2) Potassium Deficiency

Potassium is an essential element in the human body, crucial for maintaining normal nerve and muscle function. When patients have prolonged picky eating habits or loss of appetite, insufficient potassium intake may occur, leading to symptoms such as generalized weakness, fatigue, and arrhythmia. Under a doctor’s instructions, patients can take medications such as potassium citrate granules or potassium chloride tablets for treatment.

In addition to the above factors, other possible causes include rheumatoid arthritis, osteoporosis, and hyperthyroidism. If the cause is unclear, patients should promptly visit a hospital for examination and receive targeted treatment once the underlying condition is diagnosed.