This document discusses different types of physical disabilities and their causes. Physical disability refers to any limitation in physical functioning, movement, dexterity or stamina. Physical disabilities can be congenital or hereditary, caused by injury, infection or medical conditions. They include impairments affecting mobility like spinal cord injuries, muscular dystrophy or cerebral palsy, as well as sensory impairments causing blindness or hearing loss. The document categorizes physical disabilities into four broad groups - visual, hearing, motor and cognitive/learning disabilities - and discusses common conditions and adaptations for each group. It emphasizes that people with disabilities can live full and productive lives with support from their communities.