Periorbital cellulitis or preseptal cellulitis is an inflammation and infection of the eyelid and portions of skin around the eye, anterior to the orbital septum. It may be caused by breaks in the skin around the eye, and a subsequent spread of bacteria into the eyelid; infection of the sinuses around the nose (sinusitis); or from the spread of an infection elsewhere through the blood. Symptoms include eyelid redness, swelling, and tenderness around the eye, as well as fever and eyelid drooping. It is important to seek medical attention for periorbital cellulitis as it can cause serious complications if left untreated. Treatment typically includes antibiotics and may also include incision and drainage if an abscess is present.