Brain tumour warning sign that appears then vanishes in seconds

Brain tumour warning sign that appears then vanishes in secondsMore than 88,000 people are currently living with a brain tumour across the UK with early diagnosis giving the best chance of fighting the conditionCommentsNewsElaine Blackburne Network Content Editor10:35, 20 Apr 2026View 3 ImagesHeadaches are a sign of a brain tumour(Image: Getty)Thousands of people are currently living with a brain tumour. Figures show there are at least 88,000 people with the condition across the UK.Early diagnosis gives people the best chance of fighting the disease, making it essential to know exactly what to look out for. And while many people know to seek help if they are suffering regular headaches there are other symptoms which can provide clues that all might not be well.One of these is a sign that appears then disappears in just seconds - and it is all to do with your eyesight. There's one lesser-known indicator that can be tricky to identify as it happens then vanishes within seconds.View 3 ImagesFeeling dizzy as you stand can be a symptom of a brain tumour(Image: Getty)Specialists from the Brain Tumour Charity say that temporary vision loss when standing up which resolves within moments could signal the condition. It explained on its website: "A brain tumour can cause a change in vision by causing pressure on the optic nerve or by creating swelling of the optic disc in the back of the eye." The charity notes this is amongst several symptoms manifesting in the eyes."It adds: "A change in vision sometimes caused by brain tumours is blurred vision. You could notice that it has become hard to watch TV or read."Another change in vision could be a sudden loss of vision lasting a few seconds ('greying out'). This is usually related to changes in your posture, like suddenly standing up."Or you may find you have lost part of your field of vision. This could lead to you bumping into objects. Or you could feel as if objects or people are su...