Sweat is among the leading causes of pruritus in the legs.

Perspiration on the skin and dead cells that are not removed for a prolonged period are the ideal environment for microbes. 
In addition, excessive and persistent sweating alters the skin’s natural protective barrier and can also promote other skin diseases such as mycoses .

 

Causes of itching in the legs without rash

Dry skin
The dry skin can be caused by environmental factors such as:

  • Frequent baths with aggressive soaps,
  • Sweat,
  • Indoor heat when the weather is cold,
  • Dehydration ,
  • Genetic predisposition,
  • Some diseases such as hypothyroidism
  • A systemic autoimmune disease such as  Sjögren’s syndrome ,
  • Reduction of natural oils produced by the skin with age (senile xerosis)
  • Malnutrition.

A hot shower and soap can cause dry skin and itchy rashes on the legs. 
Moisturizing creams should be applied to reduce dryness of the skin.

Taking medicines
Medications that release histamine can cause itching, such as opioids and chloroquine.

Liver disorders Liver
diseases can cause itching, especially liver cirrhosis itchy:

  • In the legs,
  • On the back,
  • In the belly,
  • In the buttocks.

In this case it is easy to feel more itching in the evening or at night after:

  • Eat a lot,
  • Drink alcohol.

The cause is the accumulation of bile salts under the skin.

Poor blood flow
Venous insufficiency of the lower limbs can cause:

Varicose veins usually do not cause symptoms. 
They sometimes cause itching and dry skin. 
The bruises on the legs can cause some itching, especially in the early days.

Nervous system
disorders Nervous disorders are some of the diseases that can affect the nervous system and cause itching, such as:

Other diseases that cause itching

It can also be caused by:

 


Leg itching during pregnancy

Due to poor circulation, it is not uncommon to feel itching legs during pregnancy . 
A daily walk promotes better blood circulation. 
Other causes of leg itching during pregnancy are:

1. Psychic disorders (depression, anxiety disorders) 
2. Gestational pemphigoid 
3. Intrahepatic cholestasis of pregnancy 
4. Polymorphic eruption of pregnancy.

 

Itching in the legs after epilation

The itching after epilation (waxing, shaving, etc.) is common in both women and men. 
After shaving, if you use a shaving gel or aftershave lotion that has a high alcohol content, this can cause dry skin and severe allergic reactions. Therefore it is necessary to choose products that contain little or no alcohol. 
Use natural oils to keep skin healthy. 
Who does the waxing can feel itchy when the hair grows back, usually in 2/3 days.

 


Causes of itchy rashes on the legs

Nummular or discoid
eczema Discoid eczema is a type of eczema that mainly affects adults. 
It can occur anywhere on the body, but usually affects the legs. 
It is characterized by the formation of very pruritic plaques that can also become painful. 
The plates are quite oval with well defined edges. 
Discoid eczema increases the risk of bacterial infection .

Varicose Eczema
Also known as gravitational eczema, anyone suffering from this disease notes that venous blood is not efficiently transported upward through the legs. 
This congestion of venous blood causes:

  • Itching,
  • Dry and flaky skin,
  • Injuries,
  • Ulcerações.

It can also cause wounds on the legs, especially on the ankles.

Prurigo nodular Prurigo nodularis
is a skin disease characterized by the formation of hard and protruding crusts on the skin. 
The lesions:

  • They are wide 1 – 3 cm in diameter,
  • They cause a lot of itching.

Prurigo can scratch constantly, especially in the bed at night and when touching the area with clothing or hands. 
Sometimes the itching diminishes only by itching the skin until it almost causes bleeding or pain.

Psoriasis
The psoriasis is considered an autoimmune disease mediated by T lymphocytes or T cells 
is characterized by the formation of symmetrical plates, and scaly itchy inflamed and burn. 
The areas most commonly affected by psoriasis are:

  • Elbows,
  • Knees.

This disease is seen most often in light-skinned people and is more rare in people with dark skin. 
It is a chronic disease, the treatment for psoriasis is done to reduce the symptoms.

Scabies
This is a contagious disease, caused by dust mites that penetrate the skin. 
Scabies ( scab ) causes:

  • The formation of red spots,
  • Unbearable itching.

The intensity of itching at night is greater than in the morning. 
Although any part of the skin can be infected, the areas most affected are:

  • The regions between the fingers (interdigital),
  • Knees,
  • Elbows.

Athlete
‘s foot Athlete ‘s foot (also known as a foot ) is an infectious disease that mainly affects the feet. 
It is caused by fungi belonging to the genus Trichophyton. 
Symptoms include:

  • Red skin with peeling,
  • Itching,
  • Pain.

Inflammation and blistering can also be seen   . 
The infection can also spread to other parts of the body.

Infectious cellulitis
This disease is a bacterial infection of the subcutaneous connective tissue that can occur due to:

  • Bacterial microflora present on the skin,
  • Bacteria that arrive from outside.

This infection causes inflammation of the skin layers and consequent painful rashes and itchy skin. 
The face and lower legs are the most affected areas. 
The most prone to cellulite are those with:

  • A weak or compromised immune system,
  • Wounds, blisters, cuts,
  • Cracked skin .

nfecções / insect infestations
If the skin is pricked by a parasitic insect (e.g. a mosquito bite) the area around the bite starts scratching. 
If the female anopheles mosquito bites a human, the plasmodium is transferred to the human body and is not limited only to a simple mosquito bite, but also causes malaria .

Keratosis pilaris Keratosis pilaris
(also known as chicken skin) appears as small skin-colored pimples that cause thickening of the hair follicles:

  • In the thighs,
  • In the arms,
  • In other parts of the body.

It is hereditary and can cause itching.

Folliculitis
is the infection of the hair follicle that causes red lumps in the lower extremities. 
Usually occurs in people who:

  • They often shave their legs,
  • They wear tight pants.

To treat the infection, doctors prescribe antibiotics . 
Folliculitis is quite seasonal and occurs mainly in the summer, or at the end of the summer season. 
It is most common in hot and humid climates because bacteria find a more favorable environment to grow.

 

Atopic dermatitis
The atopic dermatitis is the most common type of eczema. 
It manifests itself with:

  • Red spots,
  • Intense itching,
  • Desquamation,
  • Inflammation,
  • Loss of the upper layer of the skin.

In case of chronic atopic dermatitis, lichenification occurs. 
It is described as thickening of the skin with accentuation of the skin lines. 
Atopic dermatitis often affects children and causes blisters with itching in the ankles and feet.

Contact
dermatitis Contact dermatitis is a skin disease caused by contact between the skin and some irritants. 
These substances lie outside the body’s immune system. 
For example:

  • A poisonous hera
  • Certain chemicals present in ointments and skin creams.

The identifying sign of contact dermatitis is the formation of vesicles at the point that has been in contact with the irritant.

Allergic reaction
There are millions of people allergic to certain substances. 
The drugs are substances that can cause these unwanted skin lesions on the legs more often. 
In addition to medications, some products unsuitable  for skin care can cause itching. 
Before using the products for skin rejuvenation, you should check the label to know the ingredients inside. 
Skin lotions containing aggressive chemicals may not be used . 
Those who are susceptible to skin irritations should be very careful when choosing the right soap that fits with your skin type.

Tight
clothing Wear tight clothing or socks that leave no space for the skin to breathe threatening to trigger a rash on the legs. 
Various chemical additives are used to work the fabric. When the skin comes in contact with these clothes can trigger problems like:

  • Skin rashes,
  • Itchy legs and arms.

Excessive
scratches Many scratches with long, sharp nails are another factor that can cause eczema and itching. 
A person may scratch moderately to eliminate the irritation caused by a mild itch. 
However, sensitive skin may react negatively to scratches. The upper layer of the skin can be damaged and can further aggravate the itching sensation, forcing the person to scratch again. 
This cycle of excessive itching and intense itching can cause a skin reaction.

Cholinergic
urticaria Cholinergic urticaria (or rash) is a rash that appears on the thigh shortly after running, walking or after a long, hot shower. 
The symptoms are:

It is necessary to avoid scratching, stop running when it is too hot and take a shower with warm water.

 

Natural Remedies for Blisters That Scratch on the Legs

  • Natural treatment for itchy red lumps starts with good personal hygiene, so we avoid complications such as the spread of infections and contagious diseases.
  • It is essential to keep the affected area clean and dry.
  • You need to choose soft and suitable detergents for your skin, avoid detergents and very aggressive soaps because they can dry the skin and make the itching worse.

The following remedies may relieve the itching sensation and associated pain (if any).

Skin exfoliation three times a week.

  • Apply the ointment to exfoliate the skin and leave for about 10-15 minutes. Then rub gently with plenty of water.
  • Twice a day, apply a slice of cucumber to the affected skin area. Rinse with cold water after 15-20 minutes.
  • Dip your feet in a tub filled with water, pour 2-3 tablespoons of oatmeal  or cornstarch to get the same result.
  • Apply a lactic acid based scrub over the affected area to keep the skin moisturized and rinse after 15-20 minutes.