What Could Be the Cause of Sudden Swelling Below the Inner Corner of My Eye?

Sudden swelling below the inner corner of the eye may be caused by excessive drinking before bedtime, crying, frequent staying up late, excessive salt in the diet, kidney dysfunction, and other reasons. Here are the details:

1. Excessive Drinking Before Bedtime

Most people experience eye swelling after waking up due to excessive water intake before going to bed. The skin tissue of the eyes is relatively loose, and water accumulates under the skin surface during the night, causing the skin to expand and resulting in eyelid swelling. This condition usually resolves during the daytime. It is recommended to reduce or avoid drinking water within 3 hours before bedtime.

2. Crying

When encountering sad events, people may cry, which increases blood volume around the eyes and stimulates the tear glands to secrete tears. The water and salt in tears can cause vascular neurogenic edema in the eyes, leading to redness after crying.

3. Frequent Staying Up Late

Irregular sleep schedules and frequent staying up late can prevent the body and eyes from getting adequate rest, leading to eye redness and bloodshot appearance.

4. Excessive Salt in the Diet

Some people tend to have a salty diet with high salt intake. High-salt diets can cause water retention in the body, reducing blood circulation rate. Long-term consumption of high-salt foods can lead to toxin accumulation in the body, which may cause edema in the eyes when it reaches a certain level.

5. Kidney Dysfunction

Individuals with acute or chronic nephritis often have edema in their eyes as a main manifestation. If there is swelling of different degrees in the upper eyelids after waking up in the morning, it may be an early symptom of kidney disease. If edema in the eyes occurs frequently, it is recommended to consult a doctor for kidney function testing after ruling out other causes of eyelid swelling.