Breast reductions and operations to stop people snoring are among a list of treatments which could be cut back in plans to prevent more than 100,000 "unnecessary procedures" taking place annually.

NHS England said millions of pounds could be saved every year by tightening criteria for treatments where "the risks... outweigh the benefits".

It said the proposals will ensure procedures, such as those for carpal tunnel, haemorrhoids and varicose veins, will only take place where there is good reason to do so.

Alternative treatments such as injections, changes of diet or physiotherapy will be effective in the majority of cases, NHS England said.

National medical director Professor Stephen Powis said: "If we want the very best clinical care for our patients, we need to stop putting them through treatments where risks and harms outweigh the benefits.

"By reducing unnecessary or risky procedures for some patients we can get better outcomes while reducing waste and targeting resource to where it is most needed. "