Sexually transmitted diseases (STDs) are a critical component of clinical care and routine risk-based screening. Risk factors include having multiple sexual partners, a history of previous STDs, and engagement in high-risk behaviours. Certain populations are particularly vulnerable, such as young adults, men who have sex with men (MSM), and pregnant women. Screening recommendations focus on regular testing for common infections—including gonorrhoea, chlamydia, syphilis, HIV, and hepatitis—with an emphasis on early detection and timely treatment to reduce transmission and prevent long-term complications. The topic also explores associated symptoms, clinical syndromes, and the pathogens involved in these infections.