Which of the following is a symptom of gonorrhoea?

The presence of thick yellow or green discharge is a classic symptom of gonorrhoea, an infection caused by the bacterium Neisseria gonorrhoeae. This discharge typically occurs from the genitals, indicating the infection's impact on the body. It is important in diagnosing the condition, as it provides a clear visual indication of the type of bacteria involved and helps differentiate gonorrhoea from other sexually transmitted infections that may cause similar symptoms. In contrast, symptoms such as abdominal pain or a skin rash could be related to other conditions or infections, and chronic fatigue is too vague to specifically indicate gonorrhoea. Thus, the thick yellow or green discharge is a more specific and telling symptom of this particular infection.