Communicable diseases are illnesses that spread from one person to another through direct or indirect contact. These diseases are caused by microorganisms such as bacteria, viruses, fungi, and parasites. Contact transmission may occur through touching infected persons, sharing personal items, or exposure to contaminated surfaces. Five important diseases that spread through contact are scabies, ringworm, conjunctivitis, chickenpox, and leprosy. Scabies is a contagious skin disease caused by a tiny mite called *Sarcoptes scabiei*. The disease spreads through prolonged skin-to-skin contact with an infected person. Sharing clothes, towels, and bedding can also spread the infection. The main symptoms include severe itching, especially at night, and the appearance of small red rashes or blisters on the skin. Commonly affected areas are the fingers, wrists, elbows, and waist. Poor hygiene and overcrowded living conditions increase the risk of transmission. Treatment includes the application of medicated creams such as permethrin and maintaining personal hygiene. Washing clothes and bedding in hot water helps prevent reinfection. Ringworm is a fungal infection of the skin, hair,