What causes a feeling of swelling and stuffiness on the right side of the head?

A feeling of swelling and stuffiness in the right side of the head may be caused by upper respiratory tract infections, hypertension, insufficient cerebral blood supply, or other reasons.

1. Upper Respiratory Tract Infection

Swelling and stuffiness on the right side of the head may occur with an upper respiratory tract infection, typically caused by pathogens such as Streptococcus pneumoniae or hemolytic streptococcus. Patients may also experience symptoms including fatigue, fever, and headache.

2. Hypertension

This may also be due to hypertension, commonly resulting from long-term smoking, genetic factors, or unhealthy dietary habits. Abnormally elevated blood pressure can lead to insufficient oxygen and blood supply to the brain, causing the aforementioned symptoms. Additional symptoms may include palpitations, headache, and dizziness.

3. Insufficient Cerebral Blood Supply

If a patient suffers from inadequate cerebral blood flow, these symptoms may also appear. This condition is usually caused by cerebral vascular hardening, narrowing, or plaque formation, leading to a state of cerebral hypoxia and ischemia. Patients may simultaneously experience other discomforts such as blurred vision, vomiting, nausea, and sleep disturbances. In severe cases, temporary blindness or fainting may occur.