Cyanotoxins are toxic substances produced by certain cyanobacteria, also known as blue-green algae, which are microorganisms found in aquatic systems such as lakes, reservoirs, and ponds. These toxins can accumulate in harmful concentrations, forming algal blooms, commonly referred to as “algae blooms,” under certain favorable environmental conditions such as high temperature, intense light, and elevated nutrient concentrations. When these cyanotoxins contaminate drinking water sources, they can pose risks to human and animal health. Health effects vary, ranging from skin and gastrointestinal irritations to severe neurological problems and potentially fatal consequences. The presence of cyanotoxins in water is a growing environmental and public health concern. Regulatory agencies and health authorities closely monitor cyanotoxin levels in drinking water and implement water resource management measures to minimize risks.