A 20-year-old female experiences dizziness for no apparent reason—what could be the cause and what should she do?

Generally, unexplained dizziness in a 20-year-old female may be caused by factors such as high-temperature environments, lack of sleep, malnutrition, low blood pressure, or vestibular neuronitis. Treatment may involve general measures or medication. Specific details are as follows:

1. High-temperature environment: Prolonged exposure to hot and humid conditions may cause systemic blood vessel dilation and reduced cerebral blood flow, leading to dizziness. Ensure regular ventilation and maintain good indoor air circulation.

2. Lack of sleep: Insufficient or irregular sleep patterns can lead to physical fatigue, resulting in dizziness and difficulty concentrating. It is important to maintain adequate sleep.

3. Malnutrition: An unbalanced diet or nutrient deficiency, especially lack of essential vitamins and minerals such as iron and vitamin B12, may lead to anemia or other metabolic issues causing dizziness. Consume more vegetables and fruits daily to improve nutritional intake.

4. Low blood pressure: Hypotension refers to blood pressure lower than the normal range, which may result in inadequate blood supply. Particularly when transitioning suddenly from a sitting or lying position to standing, dizziness may occur. Medications such as midodrine hydrochloride tablets or acarbose tablets may be used under medical guidance to alleviate symptoms.

5. Vestibular neuronitis: This is usually a vertigo disorder caused by damage to the vestibular neurons, potentially causing head discomfort, vertigo, and limb weakness. Treatment may include medications such as compound amino acid capsules or mecobalamin capsules, taken as directed by a physician.

Ensure adequate rest and avoid excessive fatigue. If symptoms persist or worsen, seek immediate medical attention.