👉 Urotoxin is a type of protein in humans that plays an important role in immune system function. It is produced by certain types of bacteria and can be found in urine, semen, and other bodily fluids. Urotoxins are classified into two main categories based on their structure: the primary urotoxin and secondary urotoxin. Primary urotoxins are more commonly found in urine and are responsible for urination. Secondary urotoxins are produced