Doping types refer to various methods athletes use to enhance their performance illegally. Common types include the use of anabolic steroids, which help build muscle mass, and stimulants, which increase energy and focus. Other methods include blood doping, where athletes increase red blood cell count to improve oxygen delivery, and the use of hormones like human growth hormone to promote recovery and growth. Another category is masking agents, which are substances that hide the presence of banned drugs in the body. Athletes may also use diuretics to lose weight quickly or to dilute urine samples. Each type poses health risks and violates sports ethics.