A person who was once walking normally begins losing balance. They become forgetful, need to urinate more often and seem slower when moving around. The family assumes it is simply ageing.
Sometimes, it isn't.
Hydrocephalus is a condition in which too much cerebrospinal fluid (CSF) builds up in or around the brain. This can increase pressure or affect how the brain functions, and in some cases, surgery may be needed to improve the flow or drainage of the fluid.
Your brain and spinal cord are surrounded by a clear fluid called cerebrospinal fluid. It cushions the nervous system and plays several important roles.
Normally, this fluid is produced, circulates and is absorbed continuously. When its flow or absorption is disrupted, fluid can accumulate and lead to hydrocephalus.
The condition can occur in babies, children, younger adults or older people, although the symptoms can differ significantly with age.
Hydrocephalus can have many possible causes, so unusual neurological symptoms should be evaluated rather than self-diagnosed.
Possible symptoms in adults include:
Problems with balance or walking
Memory or thinking difficulties
Changes in bladder control
Persistent headaches
Nausea or vomiting
Vision problems
Unusual sleepiness or confusion
In babies, symptoms can include an unusually large head, a bulging soft spot, poor feeding, vomiting or unusual irritability.
These symptoms can have many other causes, so proper assessment is essential.
One of the most noticeable problems in some older adults with certain forms of hydrocephalus is a change in walking.
A person may begin taking smaller steps, feel unsteady or have difficulty starting to walk. When this occurs alongside memory changes and bladder problems, a neurological assessment may be appropriate.
It is easy to dismiss these changes as normal ageing. That assumption can delay diagnosis.
Not necessarily.
Treatment depends on the type and cause of hydrocephalus, the patient's symptoms and the findings on brain imaging.
In some cases, doctors may consider procedures designed to improve the movement or drainage of cerebrospinal fluid. One commonly used approach involves a shunt, which redirects excess fluid to another part of the body where it can be absorbed.
Another procedure, endoscopic third ventriculostomy (ETV), may be suitable for selected patients.
The appropriate treatment is highly individual.
A shunt is a system designed to divert excess cerebrospinal fluid away from the brain.
It usually contains a small tube and a valve that helps control fluid drainage. The fluid is redirected to another area of the body, commonly the abdomen.
Not every patient needs a shunt, and different types of hydrocephalus require different approaches.
The specialist will consider the underlying cause before recommending a procedure.
The evaluation generally starts with the patient's symptoms and medical history.
Brain imaging, such as a CT scan or MRI, can help doctors examine the brain's fluid-filled spaces and look for possible causes of fluid accumulation.
Depending on the situation, additional tests may be needed.
The goal is to establish whether the symptoms and imaging findings fit hydrocephalus and determine which treatment, if any, is appropriate.
Imagine an older adult whose family notices three gradual changes: walking has become slower, memory isn't as sharp and bathroom accidents have become more frequent.
Initially, the family assumes these are simply signs of ageing. During a neurological evaluation, however, brain imaging raises the possibility of a type of hydrocephalus.
Further assessment helps determine whether the condition is contributing to the symptoms and whether a procedure could be useful.
The lesson is important: a gradual change can still deserve medical attention.
Many people believe that neurological problems should only be investigated when symptoms become severe.
That's not always sensible.
With conditions such as hydrocephalus, symptoms can develop gradually. Waiting until someone is unable to walk or function independently may mean the condition has already significantly affected their daily life.
Early evaluation doesn't necessarily mean surgery. It simply gives doctors a chance to identify the cause and discuss appropriate options sooner.
If surgery is being discussed, don't hesitate to ask for specifics.
You can ask:
What type of hydrocephalus is this?
What is causing the fluid buildup?
What does my scan show?
Is surgery necessary?
Could observation be appropriate?
Would a shunt or another procedure be considered?
What are the potential complications?
What follow-up will be required?
These questions can make a complicated diagnosis easier to understand.
Dr. Bhoopendra is a neurosurgical specialist who may assess patients with conditions involving the brain, spine and nervous system, including cases where abnormal cerebrospinal fluid circulation is suspected. His evaluation can include reviewing symptoms and brain imaging before discussing suitable treatment options. For patients diagnosed with hydrocephalus, a detailed consultation can help clarify the type of condition and whether a procedure should be considered.
Hydrocephalus can affect people across the lifespan, and its causes vary considerably between children and adults.
Normal-pressure hydrocephalus, in particular, can be difficult to recognise because its symptoms—walking difficulty, cognitive changes and bladder problems—can resemble other conditions common in older adults.
That makes proper neurological assessment especially important when these symptoms occur together.
Some symptoms require immediate medical attention.
Seek emergency care if someone develops sudden severe headache, repeated vomiting, rapidly worsening confusion or drowsiness, seizures, loss of consciousness or sudden changes in vision or movement.
A person with a known shunt also needs prompt assessment if there are sudden or concerning changes that could indicate a shunt-related problem.
Hydrocephalus can often be treated, but the outcome depends on its cause, type and the patient's overall condition. Treatment may involve procedures that improve or redirect cerebrospinal fluid flow.
No. A shunt is one treatment option, but selected patients may be considered for other procedures such as endoscopic third ventriculostomy.
Symptoms can include walking or balance problems, memory changes, bladder-control issues, headaches, nausea, vomiting and changes in alertness. The pattern depends on the type of hydrocephalus.
Changes in walking, memory or bladder control can have many causes. But when several appear together, assuming they are simply part of ageing may not be the best approach.
Bring previous scans and medical records to a neurosurgical consultation and discuss what could be causing the symptoms. Contact our team to arrange an evaluation and understand whether further testing or treatment is appropriate.
