Travel Insurance and medical insurance serve different purposes.
Travel Insurance policies are designed to cover accidents, property loss, cancellations and emergencies while overseas.  Our Travel Insurance policies can cover emergency medical treatment related to pre-existing medical conditions, but not all do.
Medical insurance focuses on medical cover, usually in your home country, for issues like therapies, treatments, medications and sometimes preventative care. UK residents are entitled to free healthcare from the NHS, so this isn’t needed. However. many people also take out private medical insurance to cover the costs of private healthcare providers.