Are freckles a skin disease, melasma Are freckles a skin disease?

**。Genetic predisposition, autosomal dominant inheritance. Sun exposure is a necessary factor for the development of rashes.

Clinical presentation. Skin lesions appear mostly around the age of 3 to 5 years, and more often in women. Their number increases with age.

It is more likely to occur on the face, especially the nose and cheeks, and can affect exposed areas such as the neck, shoulders, and back of hands, and there is no rash on unexposed areas. Lesions range from light brown or dark brown pinhead size to large mung bean macules, round, oval, or irregular. Scattered or clustered, isolated and not fused.

No symptoms. The rash darkens and increases in number after sun exposure in summer, and decreases or disappears in winter. There is often a family history.

Diagnosis. The number of melanocytes in the epidermis does not increase at freckles, but the number of melanosomes increases significantly and is rod-shaped.

Differential diagnosis. Should be distinguished from lentigines, sunspots, and mild xeroderma pigmentosa.

**。1.Decolorization**.

3% 5% hydroquinone cream, tretinoin ointment, 3% 5% arbutin cream, 20% azelaic acid cream, 1% kojic acid cream, etc., can have a certain effect if applied externally for several months.

2.Corrosive, destructive**.

In the past, liquid nitrogen freezing, trichloroacetic acid or phenol spot coating, mechanical grinding, high-frequency electricity, ordinary CO2 laser, etc., can make freckles peel off, but the above ** is not selective for skin lesions, often causes some sequelae, need to be operated carefully, **too deep is easy to cause depressed scars or hypertrophic scars, and may lead to pigmentation or hypopigmentation, at the same time, the process is painful, and patients are difficult to accept.

3.Laser selectivity**.

Modern Q-switched lasers are highly selective for freckles and are currently the best method for freckles.

Prognosis. Extreme sun exposure should be avoided or minimized, or sunscreen-type light repellents should be applied to reduce the occurrence of freckles or reduce the deepening of freckles.

Hello, the meridians are blocked, resulting in blood stasis and internal stop, poor blockage, heart blood can not reach the face, nourishing the skin, and the metabolic garbage, harmful substances and melanin in the ** can not be discharged with the normal metabolism of the human body, and freckles are gradually formed by deposition.

Difference between melasma and freckles:

Melasma: Melasma, also known as liver spots, is caused by the appearance of yellowish brown pigmentation on the face. Its onset is related to pregnancy, long-term oral contraceptives, and menstrual disorders.

It is also seen in some patients with female reproductive system diseases, tuberculosis, cancer, chronic ethanol poisoning, liver disease, etc. Sunlight can contribute to the onset of the disease.

Freckles: hereditary predisposition, autosomal dominant. Sun exposure is a necessary factor for the occurrence of rashes, which darkens and increases in number during the summer months and lessens or disappears in the winter.

Freckles are small, light brown spots that are the size of a grain of rice and are often found on the forehead, bridge of the nose and cheeks, and occasionally on the neck, shoulders and backs of the hands. There is no subjective feeling or other influence other than cosmetic hindrance.

The pigmentation of melasma is mainly in the basal layer of the epidermis, and the melanin granules are significantly increased, and in more severe cases, there is more melanin in the melanophage cells of the dermis, and the number of pigment cells, the formation of melanin and the activity of melanin granules have different increases compared with normal. A decoction that has the effect of eliminating freckles. Mung bean lily whitening soup:

Wash the mung beans, red adzuki beans and lilies, and soak them in an appropriate amount of water for half an hour. After boiling over high heat, switch to low heat and cook until the beans are cooked. Season with salt or sugar to taste, depending on your preference.

The vitamins contained in mung beans and lilies can reduce melanin and have a bleaching effect. The most common method of disappearance of freckles from the face is medical laser.

According to your description, the main problem is freckles and melasma, which is a common disease in the first family, and the cause of the disease is mainly related to endocrine and sunlight.

Guidance: **, whether it is traditional Chinese medicine or Western medicine, the first thing is to avoid sun exposure, and external sunscreen or parasols can be used; This is followed by medications**. Drug**Chinese medicine is the first choice for internal use**, and there is no good freckle removal drug in Western medicine at present; Topical drugs can be vitamin E ointment or hydroquinone cream or drugs containing fruit acids.

Melasma can not be laser**, this point is clear, and secondly, the cosmetics selected can not have whitening, whitening products mostly contain hormones or heavy metals, the beginning of the effect is better, the more you use it, the heavier it will be.

Freckles are a type of lesion that occurs on the face in the form of spots, or small sesame brown or light brown spots. The best areas of hair are the cheeks and the bridge of the nose, but it can also spread to the entire face or even the neck, which is one of the most common causes of facial beauty. Most of them are acquired, but some patients are congenital.

1. Small brown spots from the tip of the needle to the size of a grain of rice are called freckles because of their shape and color like finch eggs.

2. Freckles tend to occur on the face, neck, arms and other sun-exposed parts, and the face is mostly scattered on the cheeks and the bridge of the nose.

3. The number of freckles is uncertain, and each does not blend with each other.

4. Generally, it occurs at an early age, and there are more females than males, often accompanied by family history, and no other symptoms.

Melasma: It is an acquired localized hyperpigmentation disease, also known as butterfly spots, pregnancy spots, liver spots, etc., which are the same disease, named according to the morphology, age characteristics, etc.

1. It occurs on the cheekbones, forehead and around the mouth of the face, and is mostly symmetrical and butterfly-shaped, so it is also known as "butterfly spots".

2. The first color is like dirt, which deepens over time and becomes light gray-brown or dark brown, dull and dull.

3. The size is uncertain, the edge of the spot is clear, the surface is smooth, there is no inflammatory reaction, and it is itchy.

4. Women who often use oral contraceptives and are pregnant will have "pregnancy spots" on their faces, which is also a kind of melasma.

5. Women with melasma are often accompanied by menstrual disorders, premenstrual breast swelling, or chronic diseases. 、

There are many types of facial spots, and there are many types.

Facial freckles are small, dark-brown spots that occur on the face, usually around the age of 5 years, and often worsen around puberty. It is manifested as light brown or dark brown punctate pigmented spots, round, oval or irregularly shaped, with clear borders, generally about 2mm in diameter, smooth surface, isolated but not fused, and distributed in different shades. There are no symptoms.

Freckles usually develop at the age of 4 to 5 years and are usually female. It is more common on women's faces, and it is most noticeable with age, most noticeable during puberty, and freckles will decrease appropriately in old age.