A practical overview
What are varicose veins?
Varicose veins are enlarged, twisted superficial veins that can be
seen or felt beneath the skin. They most often appear on the legs,
where veins must return blood upwards towards the heart against
gravity. Their appearance can range from small, visible branches
to larger veins that bulge beneath the skin. Some people notice
them mainly as a cosmetic change, while others experience aching,
heaviness, itching, swelling or skin changes.
Varicose veins are common, but their presence does not tell the
whole story about how the veins are working. In some people, the
visible veins are associated with reflux in larger superficial
veins. In others, the visible pattern may be limited or may not
explain the symptoms by itself. A clinical assessment helps place
the visible veins, symptoms and any relevant medical history in
context.
The term venous insufficiency describes difficulty with
the return of blood through the veins. In the legs, this can be
related to weakened or damaged valves, obstruction to blood flow,
or a combination of factors. Chronic venous insufficiency can
involve symptoms and signs that extend beyond visible varicose
veins, including persistent swelling, skin changes or a venous
ulcer. The exact findings differ from person to person.
Key point
Varicose veins are not assessed by appearance alone. Symptoms,
examination and, when appropriate, Doppler ultrasound help
determine whether there is an underlying vein problem and which
options may be suitable.
Understanding venous insufficiency
Veins carry blood back towards the heart. In the legs, one-way
valves help keep blood moving in the right direction. When valves
do not close effectively, some blood can flow backwards, a process
known as reflux. Reflux may increase pressure in the affected
superficial veins and contribute to their enlargement. This is one
possible mechanism behind varicose veins, although not every
visible vein has the same cause.
Venous insufficiency is a broad term. It may refer to an issue
affecting superficial veins, deeper veins, or the pathways that
connect them. Previous deep vein thrombosis, anatomical variation,
pregnancy-related changes and other health factors can influence
venous circulation. This is why a person’s symptoms and ultrasound
findings should be considered together rather than relying on a
general description.
The condition can be mild and cause few symptoms, or it can be
associated with more persistent problems. Some people report
symptoms that become more noticeable after long periods of
standing or sitting and improve when they rest or elevate their
legs. Others seek an assessment because of visible veins, skin
irritation, swelling or a wound near the ankle that is slow to
heal. These experiences are not specific to venous disease, so
medical assessment is important before attributing them to a vein
problem.
Venous insufficiency does not progress in the same way for
everyone. A person with visible veins may never develop serious
complications, while another person may have skin changes or
ulceration. A clinician can discuss the findings, possible causes
and appropriate monitoring or care based on the individual
assessment.
Symptoms and signs of varicose veins
Varicose veins may be visible without causing discomfort. When
symptoms are present, people commonly describe a combination of
sensations rather than one single symptom. Symptoms may vary during
the day and may be affected by activity, prolonged standing, heat,
pregnancy or other individual circumstances.
- Aching, throbbing or a feeling of heaviness in the legs
- Itching or irritation around visible veins
- Ankle or lower-leg swelling, often more noticeable later in the day
- Night-time cramps or a feeling of restlessness in the legs
- Visible, enlarged or twisted veins beneath the skin
- Skin colour or texture changes around the lower leg or ankle
- Inflamed, dry or itchy skin in the area affected
- A sore or ulcer near the ankle that is slow to heal
These symptoms can also occur with other conditions, and their
presence does not confirm venous insufficiency. For example,
swelling can have several causes involving the heart, kidneys,
lymphatic system, medications or reduced mobility. A clinician will
consider the pattern of symptoms, medical history and examination
findings before recommending further tests.
Seek prompt medical advice if a varicose vein begins to bleed,
particularly if bleeding is heavy or does not stop with direct
pressure. A suddenly painful, warm or swollen leg also needs
timely medical assessment because several conditions may cause
these symptoms. If you are unsure whether symptoms require urgent
attention, contact a local healthcare professional or emergency
service.
Causes and risk factors
Varicose veins can develop when the normal function of vein valves
is affected and blood pools in superficial veins. There is not
always one identifiable cause. Several factors may influence the
likelihood of developing varicose veins or experiencing symptoms.
Having one or more risk factors does not mean that a person will
necessarily develop the condition.
Family history and age
Varicose veins can run in families. A family history may indicate
that a person is more likely to develop them, but it cannot predict
the severity or course of the condition. The likelihood of visible
veins can also increase with age as vein walls and valves undergo
changes over time. Varicose veins can nevertheless occur in
younger adults as well.
Pregnancy and hormonal changes
Pregnancy can affect circulation through hormonal changes and
increased pressure within the abdomen. The growing uterus may
influence blood return from the legs, and the volume of blood in
the body changes during pregnancy. Some veins become more visible
during this time. They may improve after pregnancy, although this
is not guaranteed. Anyone who is pregnant or recently gave birth
should discuss symptoms and suitable care with a qualified
clinician.
Prolonged standing or sitting
Remaining in one position for extended periods may make leg
symptoms more noticeable for some people. Movement of the calf
muscles supports circulation in the legs, so regular movement
breaks can be helpful as part of general wellbeing. However,
changing work habits cannot repair a damaged valve or replace an
appropriate medical assessment when symptoms persist.
Other health and lifestyle factors
Body weight, previous blood clots, reduced mobility and other
medical conditions may be relevant to a person’s overall vein
health. These factors should be discussed in the context of the
individual medical history. A clinician can help distinguish
general lifestyle advice from measures that need to be tailored to
a person’s health, mobility and circulation.
Different patterns of vein concerns
Varicose veins do not look identical in every person and can appear
in different parts of the body. The location and pattern help
guide the assessment, but they do not by themselves determine the
cause or the most suitable treatment. Some concerns may be linked
to venous reflux, while others may involve smaller superficial
vessels or a different underlying issue.
The leg is the most common location for varicose veins, but visible
veins can occur elsewhere. Vein concerns involving the pelvis,
breast, face, hands or genital area may have different causes and
require a location-specific assessment. A page about leg varicose
veins should not be treated as a substitute for advice about
another area of the body.
Small spider or thread veins are usually closer to the surface of
the skin and are different in appearance from larger, bulging
varicose veins. A person may have both types. An assessment can
help clarify whether there is an underlying reflux pattern that
should be considered before focusing on the visible smaller
vessels.
How are varicose veins assessed?
Assessment generally begins with a conversation about symptoms,
when they occur, how they affect daily activities and whether they
have changed over time. The clinician may ask about previous
procedures, pregnancy, blood clots, other health conditions,
medications and family history. These details help shape the
examination and determine whether further investigation may be
useful.
Clinical examination
A physical examination may include looking at the affected area
while standing, assessing visible veins and checking for swelling
or skin changes. The exact examination depends on the body area,
the symptoms and the person’s health. A clinician may also consider
whether the symptoms could be related to another condition rather
than assuming that visible veins explain everything.
Doppler or duplex ultrasound
When appropriate, Doppler or duplex ultrasound can be used to
assess blood flow and map relevant veins. It is a non-invasive
imaging test that uses sound waves. The examination can help
identify reflux in the veins, assess the direction of blood flow
and provide information used in treatment planning. NICE guidance
recommends duplex ultrasound to confirm varicose veins and assess
the extent of truncal reflux when planning treatment for suspected
primary or recurrent varicose veins. :chatgpt-content-reference{index="0"}
Ultrasound findings are interpreted alongside symptoms and
examination results. A scan does not automatically mean that a
procedure is needed. The clinician should explain what the
findings mean, which veins appear to be involved and whether
observation, self-care, further assessment or a treatment
discussion is appropriate.
Discussing the findings
After the assessment, the clinician can explain the diagnosis in
plain language and review the available options. You can ask which
symptoms the proposed care is intended to address, what the
expected recovery may involve, what risks are relevant to you and
whether alternatives are available. A decision should take your
medical findings, preferences and circumstances into account.
Treatment options for varicose veins
Not every person with varicose veins needs a procedure. The choice
of care depends on the symptoms, examination, ultrasound findings
when indicated, medical history and personal preferences. Treatment
may focus on symptom management, addressing an underlying reflux
source, reducing particular visible veins, or managing a
complication. A clinician should discuss the potential benefits,
limitations and risks of each suitable option.
NICE lists endothermal ablation, ultrasound-guided foam
sclerotherapy and surgery among the interventional options for
varicose veins. Which option is appropriate depends on individual
findings; no single technique is suitable for every vein or every
patient. :chatgpt-content-reference{index="1"}
Endovenous laser ablation (EVLA)
EVLA uses laser energy delivered through a catheter inside a
selected vein. It may be considered for certain patterns of
venous reflux. Whether it is suitable depends on the vein
anatomy, ultrasound findings and the clinician’s assessment.
Read about EVLA →
Radiofrequency ablation (RFA)
RFA uses radiofrequency energy to close a selected vein from
within. It is an endovenous option that may be considered for
some patients after clinical and ultrasound assessment.
Read about radiofrequency ablation →
Glue ablation
Glue ablation is a non-thermal technique that uses a medical
adhesive to close a selected vein. Suitability depends on
individual anatomy, clinical findings and discussion of the
potential benefits and risks.
Read about glue ablation →
Foam sclerotherapy
Foam sclerotherapy involves injecting a sclerosant in foam
form into selected veins. Ultrasound guidance may be used for
certain veins. The method and follow-up depend on the vein
pattern and the treatment plan.
Read about foam sclerotherapy →
Microphlebectomy
Microphlebectomy removes selected superficial varicose vein
branches through small skin openings. It may be considered
when the pattern of visible veins and the clinical assessment
support this approach.
Read about microphlebectomy →
Sclerotherapy
Sclerotherapy uses an injected solution to treat selected
veins. The type of solution and whether it is used in liquid
or foam form depend on the vein being treated and the
individual plan.
Read about sclerotherapy →
Compression garments, movement and leg elevation may be discussed
as supportive measures in appropriate situations. They do not
correct every underlying vein problem, and their use should take
account of a person’s circulation and other medical conditions.
Ask a clinician which measures are suitable for you, particularly
if you have arterial disease, reduced sensation, skin problems or
difficulty putting garments on.
A treatment plan may include one procedure or a combination of
approaches, depending on the findings. The plan should explain
which veins are being treated and why, what the procedure involves,
what aftercare is advised and when follow-up is recommended.
Results and recovery vary, and no treatment can guarantee that new
veins will never appear.
What to expect during a consultation
A consultation is an opportunity to describe your concerns and
understand the assessment process. You may find it useful to note
when symptoms occur, whether one or both legs are affected, what
makes symptoms better or worse and whether you have noticed
swelling, skin changes or bleeding. Bring a list of medications
and relevant medical history if available.
The clinician may examine the area and recommend Doppler
ultrasound if it is appropriate for your presentation. If an
ultrasound is performed, the findings can help map the veins and
inform the discussion. Some people may need more than one
assessment or further investigation; others may not need a
procedure. The next step should follow the clinical findings.
Before agreeing to a procedure, ask questions until the plan is
clear. You may want to know what the treatment is intended to do,
which vein or veins are involved, whether alternatives are
available, what side effects or complications may occur, how
follow-up works and what symptoms after the procedure should
prompt contact with the clinic. Your care team should explain
information in a way you can understand.
For international visitors, planning may also involve travel
timing, accommodation, the date of any assessment and arrangements
for follow-up after returning home. Medical suitability and
procedure timing must be assessed individually. Avoid making
travel or treatment decisions based only on online information;
discuss practical arrangements with the clinic and your own
healthcare professionals.
Everyday measures and vein health
Everyday habits may support general circulation and comfort, but
they cannot replace assessment when symptoms are persistent or
worsening. People spend different amounts of time sitting,
standing and moving, so practical advice should fit the individual
routine and health needs.
- Take regular movement breaks if you sit or stand for long periods.
- Walk or take part in activity that is appropriate for your health and mobility.
- When resting, ask whether leg elevation may be suitable for your symptoms.
- Follow professional advice about compression garments rather than selecting them solely by guesswork.
- Look after the skin and seek advice about persistent itching, inflammation or wounds.
- Discuss changes in symptoms or new swelling with a healthcare professional.
These measures are general and may not be appropriate for everyone.
For instance, a person with a history of arterial circulation
problems may need specific advice before using compression.
Similarly, new swelling or pain should not automatically be
attributed to varicose veins. A clinician can help determine
whether another cause should be considered.
Skin care deserves attention when venous disease is suspected.
Dry, irritated or discoloured skin can have several causes. Do not
apply strong products or treat a wound without appropriate advice.
If a sore is not healing, is becoming more painful, or shows signs
of infection, seek medical assessment.
Possible complications and when to seek care
Many people with varicose veins do not develop serious
complications. However, some may experience bleeding from a
superficial vein, inflammation around a vein, skin changes or a
venous ulcer. The possibility and significance of these problems
vary, and a clinician can assess the situation and recommend
appropriate care.
Arrange a medical assessment if you have persistent pain, itching,
swelling, worsening visible veins, skin changes or a sore that is
slow to heal. If a vein bleeds, lie down if possible, raise the
affected leg and apply firm direct pressure with a clean cloth
while arranging urgent medical help. Do not delay urgent care if
bleeding is heavy or continues.
Sudden swelling, pain, warmth or redness in one leg should be
assessed promptly, particularly if symptoms are new. These signs
can have causes that require timely medical attention and cannot
be diagnosed reliably through a website. If you develop chest
pain, difficulty breathing, fainting or another severe sudden
symptom, contact emergency services immediately.
Follow-up and long-term expectations
Follow-up recommendations depend on the diagnosis and any
treatment performed. A care team may review symptoms, examine the
treated area or arrange imaging when clinically appropriate. The
timing and type of follow-up are individual and should be explained
before or after a procedure.
Treating a particular vein does not remove every future risk of
developing visible veins. Other veins may become prominent over
time, and some people may need further assessment or additional
treatment. This does not necessarily mean that the initial
treatment failed; vein disease can involve more than one vein and
may change over time. If symptoms recur or new symptoms develop,
contact a healthcare professional for advice.
Long-term care should focus on the person’s symptoms, vein health
and overall wellbeing. A personalised plan may include education,
supportive measures, treatment of selected veins and follow-up.
The aim is to make decisions based on the clinical findings and
the patient’s priorities rather than assuming that one standard
approach is right for everyone.
Explore related vein topics
The following pages provide more focused information about
conditions and treatment options. They are intended to help you
explore the subject and do not replace an individual consultation.
Patient questions
Frequently asked questions
Are varicose veins and venous insufficiency the same thing?
They are related terms but do not mean exactly the same thing.
Varicose veins are enlarged superficial veins. Venous
insufficiency describes difficulty with blood returning
through the veins and may involve reflux or other circulation
problems. A clinical assessment helps determine how the terms
apply to an individual.
Can varicose veins occur without symptoms?
Yes. Some people have visible varicose veins but little or no
discomfort. Others experience aching, heaviness, itching,
swelling or skin changes. The appearance of a vein alone does
not establish whether treatment is needed.
Does every person with varicose veins need treatment?
No. The appropriate approach depends on symptoms, examination,
ultrasound findings when indicated, medical history and the
person’s preferences. Some people may be advised to monitor
the condition or use supportive measures; others may discuss
a procedure with a clinician.
Why might Doppler ultrasound be recommended?
Doppler or duplex ultrasound can assess blood flow and map
relevant veins. It may help confirm reflux, identify the
extent of a vein problem and inform treatment planning. The
clinician decides whether imaging is appropriate based on the
individual assessment.
Can exercise make varicose veins disappear?
Movement and exercise support general health and may help some
people feel more comfortable, but they do not reliably make
established varicose veins disappear or repair a damaged
valve. Seek medical advice if symptoms persist or change.
Are compression stockings suitable for everyone?
Not necessarily. The type and use of compression should be
discussed with a healthcare professional, particularly if you
have arterial circulation problems, reduced sensation, skin
issues or difficulty putting garments on. Do not assume that
compression is suitable without considering your health.
Which procedure is best for varicose veins?
There is no single procedure that is best for every person.
Options may include endovenous ablation, foam sclerotherapy,
microphlebectomy or other approaches. The suitable method
depends on the vein anatomy, symptoms, ultrasound findings,
medical history and discussion with the treating clinician.
Can varicose veins come back after treatment?
New veins can develop over time, and some people may need
further assessment or care. The likelihood varies. Follow-up
advice and long-term expectations should be discussed with
your treating clinician.
When should I seek medical advice about varicose veins?
Arrange an assessment for persistent pain, swelling, itching,
skin changes, a slow-healing sore or worsening symptoms. A
bleeding vein needs urgent attention. Sudden one-sided leg
swelling or pain should also be assessed promptly.
Can I choose a treatment based on a photograph?
A photograph may show visible veins but cannot determine blood
flow, valve function or the full medical context. Treatment
decisions require an appropriate clinical assessment and
imaging when indicated.
Medical information sources
This page provides general educational information and is not a
substitute for diagnosis or medical advice. Treatment decisions
should be made with a qualified healthcare professional after an
individual assessment.