Trichomoniasis is a common sexually transmitted infection caused by a tiny parasite called Trichomonas vaginalis. It primarily affects the genital area and can lead to symptoms like itching, burning, and unusual discharge. Many people may not show symptoms, making it easy to spread without knowing. The infection is typically diagnosed through a simple test and can be treated effectively with antibiotics. It's important for sexually active individuals to get regular check-ups and communicate with their partners about any symptoms. Practicing safe sex, such as using condoms, can help reduce the risk of trichomoniasis and other sexually transmitted infections.