Question

What is the cause of swollen eyelid ??

Answer 1

A swollen eye can result from trauma, infections, or other injuries to the eye area. ... Prolonged crying, trauma, or eye injury is a common cause of swollen eyes. Virtually any cause of inflammation to the eye area may manifest as eyelid swelling, although allergic reactions are likely the most commoncause. A swollen eye can result from trauma, infections, or other injuries to the eye area. ... Prolonged crying, trauma, or eye injury is a common cause of swollen eyes. Virtually any cause of inflammation to the eye area may manifest as eyelid swelling, although allergic reactions are likely the most commoncause....
Swollen eyelids can due to effect of any allegetic or viral infection also due to extreme bacterial dust and pus cells....

Answer 2

"Allergic, bacterial and viral types of pink eye can all result in swollen eyelids, among other symptoms such as watery, red and itchy eyes. Styes usually appearing as a swollen, reddish bump on the edge of an eyelid, styes are caused by bacterial infection and inflammation of a meibomian gland."