Untreated leprosy can cause permanent damage to the nerves in the fingers, toes, hands and feet, affecting your ability to feel pain. It can also lead to muscle weakness, deformities, loss of fingers and toes, swelling, severe skin sores and lesions, frequent nosebleeds due to damage to the lining of the nose, kidney damage and even blindness. It can also reduce the amount of the testosterone and sperm counts in men, leading to erectile dysfunction and infertility.
Attribution: Straight Talk Foundation