Legs Throbbing and Numb, But Lumbar Spine and Knee Examinations Are Normal? Reasons to Suspect Varicose Veins in the Legs

If Your Legs Hurt Despite No Musculoskeletal Abnormalities

When symptoms of leg throbbing and numbness persist, the possibility that the cause is varicose veins in the legs due to vascular problems should be considered.

Many people visit pain management or orthopedic clinics with persistent symptoms of leg throbbing and numbness. In particular, among women in their 40s to 60s, those who work standing for long periods, such as beauticians or housewives, frequently complain of such discomfort.

Most people suspect knee joint problems or radiating pain from lumbar disc herniation when they visit, but it is not uncommon for no clear cause to be found in the musculoskeletal system even after detailed examinations.

When heaviness in the legs, swelling, and nocturnal cramps persist despite finding no abnormalities in orthopedic and neurological examinations, circulatory abnormalities in the lower leg veins should be considered in the differential diagnosis.

If your legs feel heavy and continue to have a bursting pain despite the problems not being in the lumbar spine or knees, you should consider the possibility of varicose veins in the legs, which is a vascular problem. Even if varicose veins do not appear to bulge on the surface, deep pain can occur due to circulatory abnormalities in the internal veins.

Asanwell pain clinic (integrated anesthesiology and pain management and orthopedic clinic) conducts medical consultations by comprehensively evaluating the causes of leg pain across three axes—nerves, joints, and veins—to ensure that venous causes are not overlooked.

The Mechanism of Varicose Veins in the Legs That Progresses Without Being Visible

Varicose veins in the legs are a progressive disease where pain and swelling can occur due to valve damage alone, even when blood vessels do not protrude visibly from the skin surface.

Blood from our heart is pumped out and reaches the tips of the feet, then must travel back up to the heart against gravity. At this time, inside the leg veins, there is a structure called a "valve" that prevents blood from flowing backward downward.

When the elasticity of blood vessels decreases with age, or when repetitive postures of standing or sitting for long periods occur, pressure inside the veins rises and these valves lose their function. As a result, blood cannot move upward and stagnates in the legs, triggering various symptoms.

The typical symptoms are as follows.

Legs becoming puffy and heavy-feeling as evening approaches
Leg cramps (charlie horses) that repeat at night
Sharp, stabbing pain or heat sensation
Latent venous insufficiency where pain and swelling appear without blood vessel bulging on the skin surface

Varicose veins in the legs are a disease where venous blood flows backward due to valve dysfunction and stagnates in the legs; symptoms can appear without vascular bulging, and it shows a progressive course where natural recovery is difficult.

In particular, latent varicose veins are difficult to confirm visually because blood vessels do not protrude outside the skin, and are often misidentified as musculoskeletal problems for a long time. If symptoms persist, accurate differentiation through venous ultrasound examination is important.

Treatment Methods for Varicose Veins in the Legs: From Conservative Therapy to Endovascular Procedures

Varicose veins in the legs apply conservative therapy and endovascular procedures in stages according to the symptom stage, and when valve damage is clear, treatment that directly blocks the causative blood vessel is considered.

Venous circulatory abnormalities do not naturally recover and have progressive characteristics that gradually worsen over time.

In the early stage or when symptoms are mild, the progression of symptoms can be slowed with conservative therapies such as wearing medical compression stockings or taking medications. Compression stockings generally use products in the 15-40 mmHg compression strength range.

However, if the valve is already damaged and blood reflux is clearly observed, fundamental resolution through conservative therapy alone is difficult.

In this case, through venous ultrasound examination, the causative blood vessel where the problem occurred is precisely identified, and treatment that blocks blood flow to that blood vessel and guides blood to bypass through other healthy veins is needed.

Recently, instead of the method of physically removing blood vessels through large skin incisions, endovascular treatment using fine catheters has been primarily utilized.

When valve damage is confirmed by ultrasound, endovascular procedures using a catheter to access the causative vessel and block blood flow are considered, and the procedure time is reported to be approximately 30 minutes to 1 hour depending on the technique.

The table below compares major treatment methods for varicose veins in the legs; please refer to it to understand the characteristics of each method.

Comparison of Treatment Methods for Varicose Veins in the Legs

Category	Conservative Therapy (Compression Stockings·Medication)	Thermal Energy Endovascular Treatment (Laser·Radiofrequency)	Non-thermal Biological Adhesive Procedure (Venaseal)	Sclerotherapy
Treatment Principle	Symptom relief through external compression and medication	High heat damages vessel inner wall → closure	Biological adhesive substance injection → vessel closure	Sclerosing agent injection → vessel fibrosis
Suitable Stage	Early·Mild	Moderate~Severe	Moderate~Severe (including nerve-adjacent vessels)	Capillaries·Small veins
Pain During Procedure	None	Relatively present (anesthesia required)	Relatively minimal	Mild pain possible
Compression Stocking Necessity	Continuous wear required	Wear recommended for certain period	Essential wear not required (some cases can be omitted)	Short-term wear recommended
Return to Daily Life	Immediate	Within several days~1 week	Relatively quick return possible	Relatively quick
Whether Fundamental Treatment	Difficult (progression suppression)	Possible	Possible	Possible for small vessels only
Precautions	Cannot solve fundamental cause	Caution when adjacent to nerves	Need to confirm possibility of allergic reactions to adhesive substance	Recurrence possibility exists

The above information is a comparison for educational purposes regarding general treatment characteristics, and appropriate treatment methods may vary depending on individual conditions.

Non-thermal Method Without Heat, The Principle and Characteristics of Venaseal Procedure

Venaseal is a non-thermal endovascular treatment method for varicose veins in the legs that uses medical biological adhesive substance to close the causative blood vessel without heat.

Among various endovascular treatment methods, the non-thermal (non-heat) approach has recently gained attention. In the past, treatment methods primarily used strong thermal energy (laser·radiofrequency) to close problem blood vessels.

In contrast, the Venaseal procedure does not use heat and applies the principle of gently closing blood vessels by injecting a small amount of biocompatible medical adhesive substance through a catheter into the causative vessel.

Venaseal procedure is a method of closing blood vessels by injecting medical biological adhesive through a catheter, and is a non-thermal treatment that reduces concerns about thermal damage to surrounding nerves and normal tissues by not using thermal energy.

The main characteristics of the non-thermal method are as follows.

Nerve Protection Aspect: Since no heat is applied, concerns about surrounding fine nerves or normal tissues being exposed to heat can be reduced.
Discomfort During and After Procedure: Reported to have relatively less pain that may occur during or after the procedure due to the absence of physical thermal damage.
Compression Stockings: Unlike thermal treatment, it has the convenience of not requiring mandatory compression stocking wear during the recovery process.
Procedure Time: The procedure itself can generally be conducted within 30-60 minutes.

Asanwell pain clinic (integrated anesthesiology and pain management and orthopedic clinic) provides guidance on appropriate treatment directions based on precise evaluation through venous ultrasound examination, tailored to each patient's vascular structure and symptom stage.

Subjects for Whom Venaseal Procedure Is Particularly Considered

Venaseal procedure can be considered as a suitable option for people with limited recovery time, difficulty wearing compression stockings, and anatomical structures where nerves and blood vessels are adjacent.

For whom is non-thermal treatment mainly considered?

First, it becomes an appropriate alternative for those who find it difficult to spare long recovery time due to housework or workplace activities. Because physical burden is relatively small and return to daily life is relatively fast, office workers and housewives with busy schedules tend to prefer this method more.

Second, it can also be a positive option for those who usually feel uncomfortable wearing compression stockings or have sensitive skin that makes stocking wear difficult.

Third, it can be appropriately considered for those with anatomical structures where the problem veins are located close to skin nerves and there is a risk of nerve damage if thermal treatment is applied.

When veins are distributed adjacent to nerves, Venaseal procedure without thermal energy can be considered an advantageous choice from the nerve protection perspective, and it is important to make the treatment choice by consulting sufficiently with medical staff based on the results of venous ultrasound examination.

However, it is not equally applicable to everyone, and appropriate treatment methods may vary depending on blood vessel diameter, location, and symptom severity. It is desirable to determine the treatment direction after accurate evaluation through venous ultrasound examination.

Continuous Management and Prevention of Varicose Veins in the Legs After Treatment

Even after treatment for varicose veins in the legs, lifestyle habit correction and self-management must be combined to maintain leg health and reduce recurrence possibility.

Even if the vein causing the problem is properly blocked, the process of correcting habitual lifestyle habits should be accompanied to completely maintain leg health. The patient's own preventive efforts play an important role in maintaining treatment effects for a long time.

Management methods that can be practiced in daily life are as follows.

Posture Change: Avoid remaining in the same posture for long periods, and it is good to get up from your seat and walk or stretch every 30-60 minutes.
Calf Muscle Activation: Assist venous blood circulation by contracting calf muscles through occasional ankle rotation or calf raise movements.
Sleep Posture: During sleep, supporting legs approximately 10-15 cm higher than the heart with a cushion may help lower pressure within the veins.
Weight Management: Maintaining appropriate weight helps reduce the burden placed on lower leg veins.
Regular Follow-up Observation: It is recommended to confirm the condition through regular ultrasound follow-up examinations even after the procedure.

Even after varicose veins in the legs procedure, avoiding prolonged maintenance of the same posture, consistently practicing calf muscle contraction exercises, and developing leg-elevated sleep habits may help with recurrence prevention.

Do not neglect leg heaviness as simple musculoskeletal fatigue, but maintain a healthy and light daily life through accurate diagnosis. Please confirm a treatment plan suitable for your condition through consultation.

Frequently Asked Questions (FAQ)

How can I tell if I have varicose veins in the legs when my legs are numb and heavy?

If symptoms of leg numbness, heaviness, nocturnal cramps, and swelling that worsens in the evening persist, and orthopedic examination reveals no abnormalities, varicose veins in the legs should be considered in the differential diagnosis. The most accurate diagnostic method is venous ultrasound examination. Through ultrasound, the function of venous valves and whether blood is flowing backward can be directly confirmed, and is generally conducted as a non-invasive examination lasting approximately 10-30 minutes. Latent varicose veins may exist even if blood vessels are not visible on the skin surface, so if symptoms are suspected, please undergo examination through consultation with a specialist.

Can varicose veins in the legs develop even if blood vessels do not protrude visibly?

Yes. Varicose veins in the legs are not a disease that must have blood vessels protruding outside the skin. When valves in veins located deep beneath the skin are damaged and blood flows backward and stagnates, symptoms such as pain, swelling, heat sensation, and nocturnal cramps can appear even without visible blood vessel bulging on the surface. This is called latent varicose veins and is often misidentified as muscle pain or neuralgia for a long time. If symptoms are suspected, accurate differentiation through venous ultrasound examination is necessary.

Can people with weak gums or elderly people receive Venaseal procedure?

Venaseal is a procedure conducted locally without general anesthesia, so physical burden is relatively low. People who are elderly or have somewhat compromised overall condition can have feasibility reviewed, but if there are underlying conditions such as diabetes, cardiovascular disease, or blood coagulation abnormalities, thorough overall evaluation should precede the procedure. Additionally, the possibility of allergic reactions to biological adhesive substances needs to be confirmed in advance. Appropriate treatment methods may vary depending on individual health status and vascular structure, so please establish a treatment plan through consultation with a specialist.

Can varicose veins in the legs recur after procedure?

Even if the causative blood vessel is blocked through procedure, if lifestyle habits are not improved, new varicose veins may develop in other veins. Since valve dysfunction itself is influenced by individual genetic and anatomical characteristics and occupational environment, recurrence is possible. To reduce recurrence possibility, self-management after the procedure is important, including avoiding prolonged maintenance of the same posture, calf muscle exercises, maintaining appropriate weight, and regular ultrasound follow-up observation.

What is the cost of treatment for varicose veins in the legs?

Treatment costs for varicose veins in the legs vary depending on the type of treatment, the number and scope of target blood vessels, and patient condition. Conservative therapy (compression stockings, medication) may have health insurance coverage in some cases, but endovascular procedures including Venaseal procedure are generally classified as non-covered items with cost ranges varying by medical facility and procedure scope. For accurate cost information, please receive guidance through consultation with a specialist after ultrasound examination results and treatment plan establishment.

This content is information created for patient education purposes. Treatment results may vary depending on individual health conditions, so please consult with a specialist.