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Talking about health and illness and can not talk about cancer, because cancer is the most ferocious disease. At present with the continuous development of medical science and technology, infectious diseases, infectious diseases have been largely controlled by humans, while the cancer is still living in the human disease, the second death, second only to cardiovascular disease. To lift the threat of cancer, mainly depends on prevention, through early diagnosis, early treatment, which is the consensus of scholars and experts. In recent years the incidence of clinical skin cancer has gradually increased, should arouse the attention of the elderly.
Common skin cancer
Occurred on the skin cancer, into the skin itself occurred in other parts of the primary cancer and transferred to a secondary skin cancer. Primary skin cancer common are basal cell carcinoma, squamous cell carcinoma in situ (Bowen's disease), squamous cell carcinoma, eczema-like carcinoma and malignant melanoma.
1, basal cell carcinoma: the face began to grow the size of the image of soy nut to crack, texture rather hard, the edge a little uplift, the center down a little bit hollow. More than a single occurrence, and good fat in the cheek, nose and nasal sides of the tumor not hurt does not itch, often without conscious discomfort, and often do not pay attention for the elderly. But without treatment, the tumor slowly increased, the easy touch ulceration and bleeding. Basal cell carcinoma, though malignant, it is generally grown very slowly, and generally does not occur.
2, squamous cell carcinoma. This cancer and basal cell carcinoma is different in patients with squamous cell carcinoma of the skin is often the basis of the original is not very good, such as the skin, often due to the strong sun, aging significantly, skin texture thick, rough surface, and some have daylight keratosis of change; another example, some previously suffered from cancer, made radiation therapy, skin atrophy thinning, there is red blood, in such a basis, it is easy to grow squamous cell carcinoma. Squamous cell carcinoma is the skin above the tumor, usually the same color as the meat more easily bleeding, relatively fast rate of growth of tumor ulceration is often a central ulcer, and sometimes there are some infections arise odor. Squamous cell carcinoma of high malignancy, more prone to metastasis.
3, malignant melanoma, which is a high grade, transfer quickly skin cancer. Western countries, prevalence is high, but mortality is also high. Chinese people are more pigment in the skin, better protection against UV effects. At the same time also pay more attention to in everyday life sun, so malignant melanoma is relatively rare in China. Because melanoma is black color, and relatively easy to find, so if the nail, a bed, soles of the feet, palms or other parts of the body found in black spots, but also expanded significantly in the near future, and easy to ulceration, or half of the nails black , should be alerted in time to the hospital for examination.
Seborrheic keratosis how the matter? Cancer will not occur?
Seborrheic keratosis is very common, can occur after the age of about 40. A lot of 5, 60-year-old man, his face brown spots emerging, people call it shou spot, medically known as senile lentigines. With age, some will gradually higher up, the surface of some was papillary, with a magnifying glass to see the surface uneven, vary in size, generally light brown, brown, and even some are black color, face, back of the hand, the body can be long, but mainly in the exposed part, in order to face and back of the hand on the more common.
The elderly occur in the facial brown spots or slightly elevated mass, the vast majority of seborrheic keratosis. Seborrheic keratosis is not cancerous. But the pink color of the face patches touching the surface more rough, Peng Zhao susceptible to bleeding, it is necessary to consider whether it is solar keratosis. Solar keratosis is a precancerous lesion, if not treated in time, the future will gradually develop into squamous cell carcinoma, it should be attention.
Symptoms of skin cancer, characteristics of
Skin cancer can grow on any part of the body. Basal cell carcinoma, squamous cell carcinoma, most of them grow on exposed parts, such as the scalp. The face, on the back of the hand. Itching of skin cancer usually does not hurt, there is no obvious symptoms. If the skin has undergone some changes, such as the face of a long package, if the pain, it may be infected. However, there is a characteristic of skin cancer is that it is relatively easy to bleeding, if you wash your face when you touched it is easy to bleeding, which would be attracted attention.
Why the elderly are prone to skin cancer
The incidence of skin cancer aged from internal speaking, first of all human beings live to be fifty or sixty years of age, the skin a long-term wind and sun and rain, followed by contact with the natural environment, the skin itself, the aging occurs, commonly known as the skin of the "physiological aging "; second, but old people after the immune system down. In fact, each one of us there are millions of body cells, so many cells in the process of growth and decay will inevitably be an exception, and our immune system normal, you can eliminate it, but after the aging immune system reduced to such cells may not be completely removed, and the results of the gradual proliferation of abnormal cells, it becomes a malignant tumor.
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