Adoption categories refer to the different types of adoption processes that individuals or families can pursue. These categories include domestic adoption, where children are adopted from within the same country, and international adoption, which involves adopting children from other countries. Additionally, there are foster care adoptions, where children in the foster care system are permanently placed with adoptive families. Another important category is relative adoption, where a family member adopts a child, often to keep the child within the family. Each category has its own legal requirements and procedures, making it essential for prospective adoptive parents to understand their options.