Hepatitis A is the most common form of viral hepatitis. However, it is also the least dangerous, almost always heals on its own and leaves no permanent damage. Nevertheless, you should get vaccinated.
Venereal diseases
Gonorrhoea, syphilis and chlamydia are sexually transmitted infections (STIs). They do not always cause symptoms. You should therefore get tested at least once a year. STIs can be treated well. This also prevents them from being passed on to sexual partners.