Do your eyelids look like this? It could signal Parkinson’s disease – what to look for

Parkinson’s disease is caused by a loss of nerve cells in the part of the brain called the substantia nigra. Nerve cells in this part of the brain are responsible for producing a chemical called dopamine. As the NHS explains, dopamine acts as a messenger between the parts of the brain and nervous system that help control and coordinate body movements.

“If these nerve cells die or become damaged, the amount of dopamine in the brain is reduced,” says the health body.

This means the part of the brain controlling movement cannot work as well as normal, causing movements to become slow and abnormal.

People commonly associate Parkinson’s with movement problems, such as tremor and slowness of movement.

The progressive brain condition can also cause the body to undergo other changes.

In addition to movement, there can be a number of visual clues of Parkinson’s.

Seborrhoeic dermatitis – a condition where areas of the skin that have lots of sebaceous glands become red, itchy and sore – is also common, according to Parkinson’s UK.

Seborrhoeic dermatitis can show up on the face in a number of ways, says the health body.

Your eyelids can become red and sensitive – this is known as blepharitis, it says.

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Other affected areas include:

• The scalp – in mild cases skin can flake off as dandruff. In more severe cases, people may have a red, scaly scalp, sometimes with a weeping rash
• The ears – areas around and in the ears can be affected. If the inner canal becomes inflamed this can cause it to become blocked
• The front of the chest
• The bends and folds of skin – such as under the breasts and arms, and in the groin.

Parkinson’s can also cause cognitive and psychiatric symptoms, such as depression and anxiety, says the NHS.

How to respond

“See your GP if you’re concerned you may have symptoms of Parkinson’s disease,” advises the health body.

As it explains, your GP will ask about your symptoms and your medical history to help them decide whether it’s necessary to refer you to a specialist for further tests.

Am I at risk?

It’s not known why the loss of nerve cells associated with Parkinson’s disease occurs, although research has highlighted some risk factors.

According to the Parkinson’s Foundation (PF), scientists believe that a combination of genetic and environmental factors are the cause.

“The extent to which each factor is involved varies from person to person,” says the PF.

Genetics cause about 10 percent to 15 percent of all Parkinson’s, says the health body.

“In some families, changes (or mutations) in certain genes are inherited or passed down from generation to generation,” it adds.

Environmental factors mainly revolve around exposure to certain substances.

It’s been suggested that pesticides and herbicides used in farming and traffic or industrial pollution may contribute to the condition.

The evidence linking environmental factors to Parkinson’s disease is inconclusive, however, adds the NHS.

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