A hard lump on the upper eyelid can be caused by mosquito bites, blepharitis, and blepharospasmal cysts.
1. Mosquito bites: Mosquito bites are more common in the summer, when the upper eyelid position by mosquito bites, will cause skin inflammation reaction. The main manifestations are hard bumps, itching, redness and swelling in the affected area.
2. Blepharitis: Blepharitis is an acute suppurative inflammatory reaction caused by purulent bacteria invading the eyelid glands. The typical symptom of blepharitis is a hard lump on the upper eyelid, which may be accompanied by redness, swelling, fever and pain.
3. Blepharophalangeal cysts: mainly due to the blockage of the blepharophalangeal gland’s drainage ducts and retention of secretions, which can lead to hard bumps on the upper eyelids.
When the patient appears to have a hard lump on the upper eyelid, he should consult the doctor for examination in time, and choose the appropriate treatment measures under the guidance of the doctor.