There are two types of tinnitus – the sounds heard vary from person to person, but they always come from inside your body, rather than an outside source.
Some people worry that tinnitus may be a sign of a serious illness, but this is very rarely the case - it's most commonly caused by changes that take place in the cochlea.
If you think you may have tinnitus, your GP can refer to you a specialist who will check your hearing and talk about the treatments available and how to manage your condition.
Look at ways you can manage your tinnitus including therapies and products that can help, as well as some of the support that is available to you.
There are many products and apps designed to help you manage tinnitus with relaxing sound therapy.