Hepatitis C mostly causes damage to the liver. But it can also play a role in other problems that may develop, such as:

• Porphyria cutanea tarda, a disorder that makes your skin sensitive to sunlight.
• Lichen planus, a skin disease that causes itchy, inflamed bumps.
• Sialadenitis, which is inflammation of your salivary glands.
• Keratoconjunctivitis sicca, a disorder that causes itchy, dry eyes.
• Mooren's ulcer, which is thinning of the clear covering (cornea) of your eye.
• Cryoglobulinemia, which is abnormal amounts of a certain blood protein that can damage or block blood vessels.
• Membranoproliferative glomerulonephritis, a kidney disease.
• An increase in your number of rheumatoid factors, which are antibodies that indicate you have an infection.