Abstract Human sexual life takes place at the biological, mental and social levels. Sexually transmitted diseases are an important issue associated particularly with the biological sphere, and have been on the rise in recent years. The wide spectrum of symptoms and consequences depends on aetiology and advancement, accompanying symptoms and/or their absence, as well as local, generalised and multiorgan lesions. They can also be present in the oral cavity. The prevention and treatment of these diseases is a special sphere of healthcare. In the context of sexual health, healthcare can be understood as integration of the biological, emotional, intellectual and social aspects of sexual life, being also important for the positive development of personality, communication and love.