Conjunctivitis, often called pink eye, is an irritation or infection of the thin, clear layer that covers the white part of your eye and the inside of your eyelid. It can make your eyes look red or pink and feel uncomfortable.

Common Symptoms

• Red or pink color in one or both eyes
• Itching, burning, or a gritty feeling
• Watery or thick discharge (sometimes yellow or green)
• Crustiness around the eyelids, especially after sleep
• Swelling of the eyelids or inner eyelid
• Sensitivity to light

Causes

• Viral infections (like a cold) – most common
• Bacterial infections – may need antibiotics
• Allergies – caused by pollen, dust, or pet dander
• Irritants – like smoke, chlorine, or contact lenses

Key Points

• Conjunctivitis is usually mild and often clears on its own.
• Good hygiene helps prevent spreading: wash hands, avoid touching your eyes, and don’t share towels.
• See a healthcare provider if you have severe pain, vision changes, or swelling around the eye.