Pigmented moles are composed of pigmented mole cells. According to the location of the mole cells on the skin, they are divided into three types: junctional moles, intradermal moles and mixed moles. Moles may already exist at birth, or gradually appear in the early years after birth, it can be said that there are “moles” not at age. 1. Junctional nevus: It grows at the junction of epidermis and dermis. Most of them are present at birth. They can grow into the dermis with age and gradually turn into intradermal nevus. Junction moles are more common in the palms and soles of the feet and are more likely to become malignant due to long-term friction. 2. Intradermal nevus: The pigmented tissue is located in the dermis. The pigmentation varies in depth, mostly round, higher than the surface of the skin, and can grow body hair. It is a common pigmented nevus, and malignant transformation is rare. 3. Mixed nevus: It has the characteristics of junctional nevus and intradermal nevus. It looks like intradermal nevus. The pigment distribution is not as regular as intradermal nevus. The central pigment is darker and spreads around it. Malignant transformation is relatively rare. Junction moles mostly appear in infants or childhood. With age, junctional moles gradually evolved into mixed moles. After puberty, most junctional nevi and mixed nevi turn into intradermal nevi. 1 How did moles form? During ontogeny, melanocytes are transported along the nerve muscles. During the transport process, they are affected by genes and environmental factors, resulting in melanocyte storage and the formation of melanocyte nevi on the surface of the skin, which is related to the development process of the individual. Almost everyone has pigmented moles, only the number or size is different, it can be said that “everyone has moles”, it can occur on any part of the body, most pigmented moles do not require special treatment. 2 Moles, what should I pay attention to in life? The most important thing we need to pay attention to is to avoid stimulation as much as possible. Pigmented moles are common to everyone, and there can be as many as 50 normal individuals, with an average of 15-20. Do not use syrup to spot moles. If it is not handled properly, it will leave unsightly scars, or induce malignant changes in moles! I have seen someone cut off or gouged out a mole on their own in clinical practice. When they came to the clinic, they saw that the integrity of the rash was significantly damaged. At this time, the possibility of malignant transformation may be significantly higher than that of the original mole. 3 Which moles are recommended to be removed? ①Pigmented nevus located on easily rubbed parts such as palms and soles; ②Pigmented nevus of nail; ③Larger pigmented nevus at birth; ④Nevus recurred after treatment such as electrocautery, freezing, and laser. 4 Principles of the treatment of pigmented nevus: if it is not cured, it will be done, and the cure will be thorough. ①A benign mole can not go without it. ②If the laser spot does not reach the effective depth, it will easily recur. ③Mole less than 2mm can be removed by laser. Carbon dioxide laser is often used to carbonize and vaporize mole cells and pigment particles without obvious scars. ④Surgery is the first choice for moles larger than 2mm. Pigmented nevus is surgically removed and fine cosmetic sutures are conducive to wound healing and reduce scar formation. Postoperative scars are slender and inconspicuous. Later, with drugs and laser treatment, the scars are smaller.
Pigmented moles are composed of pigmented mole cells. According to the distribution of mole cells on the skin, they are divided into three types: border moles, intradermal moles, and mixed moles. Moles may already exist at birth or gradually appear in the early years after birth. It can be said that there are “moles” that are not young. So, do you know the following information about “moles”? How is a mole formed? Pigmented moles are because melanocytes are transported along the nerve muscles during individual development. During the transportation process, melanocytes are stored due to external factors (including genetic factors), and melanocyte moles are formed on the surface of the skin. It is related to the development of the individual. Pigmented moles are almost everyone, only the number or size is different, it can occur in any part of the body, most pigmented moles do not need to be treated. According to the difference in histology, pigmented moles are divided into three categories: * Junctional moles: growing at the junction of epidermis and dermis, most of them are born, and will grow into dermis into intradermal moles with the age, growing in the palm , Exposed parts of the plantar and external genitalia. Due to long-term friction, trauma and infection, it is more prone to malignant transformation. *Intradermal nevus: Pigmented tissue is located in the dermis. The clinical manifestations are pigments of different shades, mostly round, higher than the skin surface, and can grow body hair. It is a common pigmented mole and malignant transformation is rare. *Mixed moles: It has the characteristics of junctional moles and intradermal moles. The appearance is similar to intradermal moles. The pigment distribution is not as regular as intradermal moles. The central pigment is deeper and diffuses around. Malignant changes are relatively rare. Most of the border moles appear in infants or children. With the increase of age, the junctional moles gradually evolve into mixed moles, and the proportion of junctional moles gradually decreases. After puberty, most junctional moles, mixed moles, become intradermal moles. 2 Moles, what do you need to pay attention to in life? “Avoid stimulation”! The most important thing we need to pay attention to is to avoid friction and irritation as much as possible. Pigmented moles are common to everyone, and normal individuals can be up to 50, with an average of 15-20. Do not use medicine to irritate moles. If the treatment is not good, it will leave unsightly scars at the worst and induce moles at the worst! I have seen people clinically remove or remove moles on their own. When they came to the clinic, they saw that the integrity of the rash was significantly damaged. At this time, the possibility of malignant transformation may be significantly higher than that of the original mole. 3. Which moles should be removed prophylactically? ①pigmented moles on palm and plantar and other rubbed parts; ②pigmented moles on nails; ③ moles that relapse after treatment with electrocautery, chemical corrosion, freezing, laser, etc.; ④ pigmented moles with larger diameters that were born. 4 How to treat pigmented moles sensibly? Some people have listened to the nonsense of the messengers who want to remove the moles in order to “exorcise and bless”. Some people are too worried, but they are afraid of evil changes, and they will not be panic all day long. They talk about “moles” color change. These practices are undesirable. It is the only feasible way to understand the medical principles and accept the doctor’s regular treatment. Common pigmented moles do not generally need treatment. The general principle is that if they are not cured, they will be completely cured. Pigmented moles, which are usually located in special parts of the nasal cavity, oral mucosa, palms, soles, vulva, anus, genitals, etc., are prone to malignant changes due to frequent friction. It is recommended to remove them as soon as possible. If necessary, dermoscopy can be used for testing. Optional treatment strategies include ionized laser, chemical corrosion, surgical resection, etc. The choice of specific treatment depends on the location of the mole. For example, if you have a face, you can choose plastic surgery to ensure the appearance; the lumbosacral region is less casual. The principle of mole removal: complete removal: moles with a diameter of less than 2mm can be treated with laser, but there are still risks: easy to relapse and malignant transformation, and surgical removal can remove the mole cells cleanly. 5What should I pay attention to after the operation? ① The wounds should be kept as dry as possible within one week after spotting the mole. After washing or touching the water, gently blot them with a clean towel as soon as possible. ② Avoid pigmentation caused by sunburn, pay attention to sun protection and protect skin. ③ Eat less spicy and spicy food and eat more foods containing vitamin C. ④Do not scratch at will to avoid infection affecting wound healing.
Pigmented moles are almost everyone, it can be described as “each person has moles”, it can occur in any part of the body, face, limbs, waist, back, hands, feet can appear. The color can be yellow, brown or black, or blue or purple. Most pigmented moles do not need to be treated. 1. What are the types of pigmented moles? Pigmented moles are composed of pigmented mole cells. According to the location of mole cells in the skin, they are divided into three types: border moles, intradermal moles, and mixed moles. Junctional mole: It grows at the junction of the epidermis and the dermis. It is usually present at birth. It will grow into the dermis as an age and become an intradermal mole. It grows on the exposed parts of the palm, sole, and external genitalia. Due to long-term friction, trauma, and infection, it is more prone to malignant transformation. Intradermal nevus: Pigmented tissue is located in the dermis. The clinical manifestations are pigments of varying shades, mostly round, higher than the skin surface, and can grow body hair. It is a common pigmented mole and malignant transformation is rare. Mixed moles: with the characteristics of border moles and intradermal moles, the appearance is similar to intradermal moles, the pigment distribution is not as regular as intradermal moles, the central pigment is deeper and diffuses around, and malignant changes are relatively rare. UV rays can stimulate mole cells to produce a large amount of melanin, which can cause the sudden appearance, increase and deepening of moles of pigment. 2. How are moles formed? Pigmented moles are caused by melanocytes being transported along the nerve muscles during individual development. Due to external factors (including genetic factors), melanocytes are stored on the way, and melanocyte moles are formed on the surface of the skin, which is mainly related to the individual. Developmental. 3. What are the signs of malignant transformation of pigmented moles? ① Rapid expansion, irregular appearance, uneven edges, unclear boundaries, and asymmetrical left and right. ② The surface color of the mole becomes darker and brighter, from smooth to rough, and the bulge disappears, and the pigment distribution is uneven or lost. ③ There is pain, itching, redness, ulceration, bleeding. ④Small lumps are formed in the black moles or satellite-like black moles appear around.
Vaccination time BCG vaccination time is generally within 24 hours after the baby is born, but if the vaccination is not done as soon as the baby is born, how should the time be counted? & nbsp. China’s health department regulations: Babies who have not been vaccinated with BCG at birth can be replanted directly if they are less than 3 months old; if they are between 3 months and 3 years old, they must first undergo a tuberculin test and the result is negative. Replanting is possible; babies aged 4 and older do not need to replant. & nbsp. Babies have been vaccinated with BCG at birth. After 3 months, they must go to the vaccination site to check to see if the BCG vaccination is successful. If it is unsuccessful, it needs to be re-vaccinated. & nbsp. BCG is a vaccination used to prevent tuberculosis in children. After vaccination, children can develop special resistance to tuberculosis. As long as the child was called BCG at birth, there is no need to call again. & nbsp. If it is a premature baby and there is no source of infection at home, it is best to vaccinate BCG after 6 months of birth. Newborns with jaundice after birth should not be vaccinated for the time being, and should be vaccinated when they have completely returned to normal. & nbsp. Inoculation site & nbsp. The BCG vaccination site is outside the deltoid muscle of the upper arm. & nbsp. If BCG is injected on the shoulder or on the deltoid muscle, it is easy to form a convex scar, and injection on the lower edge of the deltoid muscle can reduce the occurrence of such situations. The injection route is mainly intradermal injection. It should be noted that subcutaneous or intramuscular injection is strictly prohibited, otherwise it will easily cause some adverse reactions. & nbsp. Since most vaccination sites are located in the deltoid muscle of the upper arm, when other vaccines are vaccinated after BCG vaccination, the other side of the vaccine needs to be replaced. One injection cannot exceed two vaccines. & nbsp. After BCG vaccination, there will be redness and swelling at the vaccination site. This is normal. Do not use towels to apply hot compresses or apply medicine. Wear clothes that are as loose and comfortable as possible to avoid rubbing. & nbsp. Inoculation method & nbsp. When it comes to the BCG vaccination method, most parents think of injection in the left arm position. In fact, there are three methods of BCG vaccination. We will introduce them one by one below. & nbsp. 1. Intradermal injection. & nbsp. This is our most common method of vaccination. The injection site is on the lower outer edge of the deltoid muscle of the left upper arm. Those who are negative for tuberculin test have a high and stable rate of yang conversion by this method. & nbsp. 2. The method of scratching on the skin & nbsp. At the outer edge of the lower end of the deltoid muscle of the left upper arm, disinfect the skin with alcohol. The length of each is 1-1.5cm, the gap is 0.5cm, it is appropriate to show red marks. Evenly spread the bacterial vaccine to make it penetrate into the skin, and then wear the clothes after the bacterial vaccine is dry. This method is simple to operate, easy to popularize and popularize, light local reactions, and less lymph node reactions. & nbsp. 3. Oral administration is only for infants within 2 months of birth. & nbsp. Of these three methods, intradermal injection and oral methods have a higher rate of conversion to yang, and scratching on the skin has a lower rate of conversion to yang. * The content of this article comes from the Internet, only for sharing. If there is any infringement, please contact us to delete it ~