What causes varicose veins and how are varicose veins caused

What are varicose veins? Why varicose veins.

The main reason is that the congenital vascular wall membrane is relatively weak or rarely changes the same posture for a long time, blood accumulates in the lower limbs, and the venous valve is destroyed over time and the venous pressure is too high, which is a symptom of the protruding surface of the blood vessels.

Varicose veins are caused by weak veins and valves in the legs.

Normally, a one-way valve in a vein keeps blood flowing back from the lower limbs to the heart. When these valves don't function properly, blood builds up in the lower limbs, and pressure increases, causing the veins to thin, dilate, and twist.

It can be caused by one or more reasons, including:

Increased venous pressure in the lower extremities.

Venous injuries of the lower extremities.

Venous insufficiency.

Varicose veins usually run in families.

Patients may be born with a defective vein valve or a weak vein wall, or it may develop over time later in life, and aging increases the risk of developing the disease.

Being overweight, pregnant, or having an occupation that requires you to stand for long periods of time can increase the pressure in the veins of the lower extremities, which can lead to varicose veins.

Women are more likely to develop varicose veins than men. The incidence of varicose veins increases with age.

Varicose veins often occur during pregnancy. Varicose veins may be relatively subtle after the end of pregnancy and may disappear completely.

The subcutaneous veins are dark blue, swollen, and twisted. Some people have no symptoms.

The goal of varicose veins is to reduce symptoms and prevent complications. For some patients, the goal may be to improve appearance. Conservative** such as exercise and compression stockings with medications** are usually used first.

Varicosity.

Due to factors such as blood stagnation and weak venous walls, the veins are tortuous and dilated. Varicose veins can occur in many parts of the body.

For example, hemorrhoids are actually a kind of varicose veins, and there are also esophageal and gastric varices, varicoceles and abdominal wall varices that can be seen clinically. Varicose veins most often occur in the lower extremities.

It is worth emphasizing that varicose veins themselves may be secondary manifestations of other lesions, such as vena cava occlusion, etc., and the primary disease should be actively treated. 1.The superficial blood vessels are varicose like earthworms, clearly protruding**, and the varicose is clumpy or nodular; 2.

Soreness in the legs, hyperpigmentation, scaling, itching, edema of the foot and ankle; 3.Abnormal sensations in the limbs, such as pins and needles, itching, numbness, and burning; 4.elevated epidermal temperature, pain and tenderness; 5.

Local gangrene and ulcers varicose veins of the lower limbs can be used by wearing elastic stockings, injecting sclerosing agents, surgical stripping, etc., and deep vein valve insufficiency can be used for valve repair surgery and laparoscopic communication branch ligation. Varicose veins of the lower extremities may also indicate the presence of other diseases, which need to be actively primary; If deep venous return is poor, surgical management of superficial veins should be more cautious.

What are varicose veins? Why varicose veins.

The main reason for the formation of varicose veins is due to the congenital vascular wall membrane is relatively weak or the same posture is rarely changed for a long time, blood accumulates in the lower limbs, and the venous valve is destroyed over time, resulting in high venous pressure, which makes the blood vessels protrude from the surface of the ** surface.

The formation of varicose veins is divided into two main contents:

1. Varicose veins caused by congenital vascular malformations, such patients are mostly accompanied by arteriovenous malformations, arteriovenous fistulas, or KT syndrome, and varicose veins cannot be operated on alone for such patients;

2. Varicose veins are caused by occupation and bad living habits, common teachers, doctors, construction workers, and people who sit for a long time are prone to varicose veins, because the venous pressure increases when standing or sitting for a long time, blood stasis, slow venous return, and venous regurgitation occurs due to the destruction of venous valve function with the extension of time, and varicose veins are formed in the long run. For such patients, elastic stockings can be worn in the early stage, sedentary and standing can be avoided for long periods of time, and severe surgery can be performed**.

1. Congenital causes: the patient's valve may be born with some minor problems, coupled with acquired pressure, varicose veins are formed;

2. Vascular disease: people who have suffered from venous vascular embolism may have damaged valve function;

3. Perforation failure: The perforated vein connecting the surface vein and the deep vein also has a valve to prevent blood from flowing from the deep vein to the superficial vein, however, when the function of the perforated venous valve is problematic, the blood flows arbitrarily, which will put pressure on the superficial vein and the vein will expand;

4. Drug addicts: people who use syringes to take drugs are prone to damage to the valves of deep veins;

5. Pregnant women: female hormones will dilate the veins, and the valves cannot cover the veins and prevent the blood from flowing backwards;

6. Obese people: Because the lower limbs need to support the huge body, the venous pressure increases.

Varicose veins are more common in pedal drivers, teachers, and textile workers, and human blood can accumulate downward due to gravity. There are valves in the veins, which are conducive to the one-way flow of blood, and the blood moves upward through the movement of the muscles of the lower limbs, and is cut off by the one-way valves, so that the blood of the lower limbs goes from the bottom to the top. Varicose veins are caused by the following:

1. Impaired valve function: blood cannot flow completely or completely into the heart from the bottom up, and varicose veins of the lower limbs can occur due to the loss of valve function. The saphenous vein is located only subcutaneously and has no muscle coverage and assistance. As a result, there is a high incidence of vasodilation and varices;

2. Increased intraperitoneal pressure: blocking venous return, prone to saphenous varicose veins.

There are many causes of varicose veins of the lower limbs, the most common is simple superficial varicose veins of the lower limbs, which is mainly due to the insufficiency of the femoral saphenous vein valve. Another important ** is seen in primary lower extremity deep vein valve insufficiency (PDVI), which is often associated with saphenous vein valve insufficiency, which often presents with tortuous dilation of superficial veins. In addition, post-deep vein thrombotic syndrome of the lower extremities, in which superficial veins compensate for tortuous dilation occur due to poor deep venous return; Lower extremity arteriovenous fistula and venous malformation hyperosteopathy syndrome can also have superficial varicose veins of the lower extremities; Obstruction of inferior vena cava return, such as Budd-Chiari syndrome, can also lead to varicose veins in the lower extremities.

Varicose veins medically refer to the mere tortuosity and dilation of superficial veins in the lower limbs, which is different from the definition in daily life. The main causes of varicose vein formation include several aspects, which are as follows:

1. Weak development of venous wall: especially the weak development of elastic fibers;

2. Venous valve insufficiency: that is, the venous valve is insufficiency, which cannot play the role of antivenous reflux and cause varicose veins;

3. Venous hypertension: that is, the downward pressure of venous blood in the veins and blood vessels is too high, and its causes include: standing for a long time, bearing weight, walking, etc.;

4. Others: chronic cough, pregnancy, etc.

It is due to the compression or obstruction of the superior vena cava, the superior vena cava is a branch return disorder; The latter regurgitates the venous valve of the veins of the lower extremities, resulting in varicose veins of the lower extremities.

1. Due to the structural defect of the vein wall, if the valve defect precedes the varicose veins of the lower limbs, then the venous stasis that occurs at the same time as the valve is destroyed, which is one of the causes of varicose veins of the lower limbs.

2. Due to the defect of the venous valve, because the vein wall is relatively weak, it can be expanded under venous pressure, which leads to the occurrence of varicose veins of the lower limbs.

3. The cause of varicose veins of the lower limbs is also related to the factor of age, if it is said that the incidence of varicose veins of the lower limbs with primary deep vein valve insufficiency increases with age.

Consider varicose veins of the lower extremities, which are characterized by elongation, dilation, and sinuous flexion of superficial veins, which occur in people who are engaged in standing work and physical labor for a long time. Whether or not surgery is needed at this time depends mainly on your symptoms. If it is a simple superficial varicose veins of the lower limbs, and the condition is generally mild or moderate, it is recommended to choose traditional Chinese medicine conservative** first, and at the same time sleep on the high foot pad, avoid standing for a long time, and wear elastic stockings to prevent aggravation of symptoms; If the symptoms are **ulcerated, surgery** is the option.

Surgery can be performed with high saphenous vein ligation and stripping, or intervention**. Injecting a hardener is also a way to do it. However, the ** rate is relatively high.

Varicose veins are caused by various causes of blood stasis, thinning of the venous wall, tortuous expansion of the veins, earthworm-like or mass, nodular-like, mostly seen in the lower limbs, other parts such as hemorrhoids varicose veins and varicocele veins. The most common causes: people who have been engaged in standing work and heavy physical labor for a long time, obesity, and compression in the late stages of pregnancy make blood accumulate in the lower limbs, and the return flow is blocked, destroying the venous valve and the venous pressure is too high, so that the surface of the venous protrusion ** forms varicose.

Varicose veins are a very common disease, suffering from varicose veins will affect our health all the time, so what are the causes of varicose veins?

1. Weak vein wall and valve defects: The vein wall is relatively weak and can be dilatated under venous pressure, and the expansion of the valve sinus leads to the inability of the original venous valve to close tightly, resulting in relative insufficiency of the valve and blood reflux. Underdeveloped or absent valves, which are also not effective in preventing reflux, are one of the leading causes of varicose veins.

2. Due to the long-lasting increase in intravenous pressure: due to the effect of gravity, the venous blood itself produces a certain pressure on the valve, which will not cause damage to it under normal circumstances, but when the intravenous pressure continues to rise, the valve will be subjected to excessive pressure, and gradually relax, prolapse, and make it incomplete. This is more common in long-term standing work, heavy physical exertion, pregnancy, chronic cough, long-term constipation, etc.

3. Also include age and gender: because the venous pressure of the limbs only reaches the highest pressure when the body length reaches the highest, the body is not high before puberty, so the vein caliber is small, which can prevent the vein from expanding, so although there are severe varicose veins before the age of 30, most of them gradually lose their tension with age, and the symptoms aggravate and force the patient to seek medical attention.

What are varicose veins? Why varicose veins.

Many people's lives are irregular, they don't even have time to rest when they are busy, they stand all day, even if their legs are sore, but they don't care if they think about it for a better life. In general, varicose veins of the lower extremities are related to the disorder of venous blood flow back to the heart, mainly in the superficial venous system with more branches visible to the naked eye.

After standing for a long time, due to the continuous rise of pressure in the blood vessels, the venous blood is like a wave crashing on the beach, constantly "trying" to flow backwards from top to bottom, causing an impact on the blood vessel wall, which will cause the blood vessels to gradually thicken, lengthen, and twist over time, and then "prop up" the surface.

If you have a congenital weakness of the vein wall or a defect in the closure of the vein valve, you are unable to block this part of the "reverse flow", which can also lead to varicose veins. In addition, it can also be caused by overwork, trauma, major surgery, and the enlargement of the uterus during pregnancy and the compression of blood vessels.