Why do moles appear on the body in adults — causes
What are moles and why they occur in adults
Many people wonder: «Why do I have moles?» The people there are many different legends explaining the origin of these formations on the skin, even their appearance so sometimes you can explain it, but all this is only speculation, not proved from the scientific side. Most people have moles appear on the body regardless of age and many other factors. So for a more complete, accurate, and reliable answer to the above question, one must ask what does the birthmark represent.
- What is a mole?
- Why there are moles?
- Types of moles
- Dangerous moles
What is a mole?
Birthmark, or nevus, is an acquired or congenital formation on the skin. The color, size and shape can be different. Can be placed at the skin level or rise above it. When a skin cell is overloaded with pigment, is formed of the melanocyte, and when grow blood vessels – angioma appears.
Pigmented birthmarks are present in almost all people who are older than 10 years. They often appear on the face. Point birthmarks in infants is rare, but in the first years of life they begin to manifest. The greatest number of pigment spots appear during puberty because of hormone action. Little noticeable education start to become bigger, their color may also vary. Often new birthmarks appear in pregnant women, and old stains can change the color and size.
Important! Birthmarks can appear anywhere on the body including mucous membranes.
Why there are moles?
So why there are moles? Moles appear due to the local concentration of this pigment as melanin. When education does not protrude above the surface, was the accumulation of melanin in the epidermis. If the melanin has accumulated in the deeper layer, the formation may be above the upper layer of the skin.
Accurate scientific data about how moles, no, but the main causes of nevi are considered to be:
- The sun’s rays. Prolonged exposure to sunlight, the DNA in the body undergoes certain changes, which increases the likelihood of birthmarks;
- Hormones. During pregnancy in women and in puberty Teens, the pituitary gland begins to actively produce hormones. There are among them those that in the tissues increases the concentration of melanin;
- Genetic predisposition. In the DNA information is passed down through generations, this may apply to the location of the birthmarks on the body;
- Injuries and viruses. In violation of the integrity of the nevus, there is a risk of inclusion in the body of any infection. Some injuries can cause the appearance of new moles.
Usually the color of moles varies from brownish to black, and they may appear on any area of the body. They can disappear as suddenly as they appeared, but more often it happens due to a serious sunburn or in connection with the development of some skin diseases. In the female the appearance of moles, as mentioned above, may depend on the hormonal surges during pregnancy, after abortion, after childbirth and during menopause. In men, it can be a symptom of lesions of the testes, disorders of the hypothalamus and pituitary gland in the increased amount of estrogen and so forth. Various diseases, infections, congenital defects, stress – all these may well start the appearance of moles on the human body.
Given that, why do I have moles, you should follow some rules in order to reduce the risk of their formation to a minimum. Need less be kept under open sun, less to the sun, to monitor their hormonal and General health status.
Important! A lot of moles on the human body usually indicates a weak protective function of his immune system.
Types of moles
Why do I get a mole of a particular type is an interesting question. The factors of formation of moles often determine their appearance. There are lots of moles and a few principles of their classifications. It all depends on morphological features of tumors. Two standard vascular and pigmented birthmarks, and different reasons for the appearance of the overgrowth of blood vessels or excess in the cells of melanin.
By the color of their education are:
- Red (hemangiomas);
- Brown and black (ordinary moles and dysplastic nevi);
- Blue nevi;
- Purple (convex warty birthmark);
- White (epithelial-fibrous growths).
Size of release:
- Small moles (1.5 mm);
- Medium (up to 10 mm);
- Large (over 10 mm).
In the form of education are divided into:
- Flat (smooth surface);
- Convex (with rough surface);
- Warty growths (sometimes grow on the stem).
What appears some kind of birthmarks is not always possible to confidently identify. Sometimes once there is a lot of moles, sometimes it is only a few formations on the skin. Why do I get a lot of moles and they are in the end difficult to get rid of – it may shed some light the doctor after a examinations and inspections. Most birthmarks are not dangerous to humans and do not require treatment. But under the influence of external factors pigmented lesions can be reborn in one of malignant tumors – melanoma.
Why are moles dangerous? The most potentially dangerous birthmarks is considered to be education that appeared in adulthood, changed his appearance, is constantly prone to injury and more than 10 mm in diameter. In extremely rare cases of congenital benign tumors in children are transformed into cancer. Sometimes it is necessary to examine the birthmark to confirm that no changes had never happened to them. In this situation, any, even seemingly minor changes, should be cause for concern, because they may be the initial phase of a dangerous disease. In order to avoid the serious consequences of such diseases, treatment should begin in advance.
Regardless of why there were certain formations on the skin, any mutated tumors should be controlled. If there are doubts about the purity appearing nevus, it is better to show an oncologist or dermatologist. Self-diagnose birthmarks is quite difficult. Usually harmless birthmark look like outlined the spots of small size, having a homogeneous structure and is not particularly protruding above the skin level. The color of them can be very different. So to determine the exact type of education can only be a doctor after a special examination – Dermoscopy. Why appear malignancy – just can not answer no doctor. It is known that the impact of external factors such as excessive amount of sunlight and some of the other causes increase the risk of transformation of benign growths into malignant.
When determining the extent of the security formations in the skin specialists are dermatological ABCD rule advocating an acronym, where the letters signify left-to-right English words: asymmetry, border, color, diameter. It is in these performance based doctor giving an opinion on the level of risk or that birthmark. If necessary, he may order the removal of the formation on the skin.
Where there are moles – now not so clear. The causes of moles on the body can be many factors, a large percentage of which are likely still unknown to science. No matter the age whether it is small moles or large size birthmark babies born only a few days after birth and disappearing during the life of, a large number of moles on the body or is it just a couple of minor formations – the study of the structure of similar elements of the skin, finding the causes of moles, monitoring their development and timely treatment when needed is an important aspect of maintaining human health, requires special attention.