Melanoma risk factors

 There are several factors that increase the risk of tumor melanoma (Melanoma), namely:

· UV-Ultraviolet: The ultraviolet rays of the sun. And exposure to the sun is the main factor for skin cancer and tumor melanoma specifically, especially when exposure strongly to sunlight.

· Burns: The intent burns ulcers are formed and bubbles, any second-degree burns at least.

· Eye Color hair, or skin: the eyes of glaucoma or owners greens more susceptible to tumor melanoma than others. As well as the owners of blond hair, red, and white skin.

· Freckles: The presence of freckles increases the risk of tumor melanoma.

· Moles: there are some moles in the skin, may lead to melanoma. Comes moles specifications, and will be mentioned later.

· An earlier date for melanoma tumor: the presence of melanoma in the past, increases the likelihood of injury again.

· Family history: the presence of melanoma has a relative of the family, increases the likelihood of injury.

· Genetic factors: There is limited importance of genetic factors, and changes in the gene increase the risk of skin cancer.

· Albinism : It is also a disease that affects the skin and lead to a lack of color of the skin.

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Signs and symptoms of ovarian cancer

 In many cases, the ovarian cancer is asymptomatic or symptoms are not clear, making diagnosis difficult. So many cases of ovarian cancer detected at an advanced stage. Symptoms and signs that may lead to it ovarian cancer are:

    Abdominal or pelvic pain: pain may be is not clear what such as lack of rest, or he will be severe pain.
    Flatulence, because the tumor presses on the intestines.
    Loss of appetite.
    Early sense of satiety.
    Abdominal size, and if the tumor is large.
   Dropsy and in advanced cases.
    Weight loss in advanced cases.
    Bowel obstruction in advanced cases.
  Pleural Effusion: any accumulation of fluid in the pleural cavity - a cavity surrounding the lungs - and it leads to shortness of breath, coughing and chest pain. It often happens if ovarian cancer has spread to the pleural cavity.
    And the presence of a mass in the pelvis, was a doctor when physical examination.
    Vaginal bleeding if ovarian cancer has spread to the uterus.
    Swollen lymph nodes in the neck, below the navel or pelvis if the cancer has spread to them.

Not all mass in the pelvis is ovarian cancer, and may be benign lumps often. The doctor to know the distinction between cancer and those blocs non-cancerous.

Ovarian cancer has the potential to spread to many members, those surrounding it as the bladder and rectum, uterus and neck, and fallopian tubes. Or ovarian cancer spreads to the liver, the lungs, the peritoneum and the intestine, and brain. Related symptoms by the patient.

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Risk factors for lung cancer

There are several factors that lead to lung cancer, most notably smoking. The exposure to other substances and genetic factors play an important role in increasing the risk of lung cancer. The most important factors are:

· Smoking: Smoking is the leading risk factors for lung cancer, because it contains dozens of carcinogens. All forms of smoking increases the risk of lung cancer, cigarettes, pipes and even chewing tobacco. Smoking is also a risk factor for oral cancer, gum, trachea and larynx. Risk increases with increase in the amount of smoking. Reduced risk of lung cancer after smoking cessation for a period of 5-10 years at least, and probability remains high during this period, and even then as the smoker always remains the seriousness of the incidence of lung cancer even though he quit smoking.

· Passive smoking: that exposure to secondhand smoke through the presence in an environment full of smoking also increases the risk of lung cancer.

· Environmental factors: many environmental factors, especially carcinogens lead to an increased risk of lung cancer. May be exposed to these substances during work or in the environment or at home. The most important of these factors are:

Radon: There in the coal industry, but there may be in the ground and evaporates into homes and are inhaled. Radon lacks aroma and color so indistinguishable. Some countries examining the presence of radon in residential areas.

Asbestosis: used in car factories, ships, and construction workshops. If human exposure to smoking in addition to asbestos, the likely increase further. Asbestos leads to lung cancer after at least 25-40 years.

Arsenic: Metal found in pesticides used in agriculture.

Other heavy metals  may lead to lung cancer, but less significant.

· Generation: lung cancer does not occur before the age of forty, and most cases occur in advanced age, after the age of fifty private.



· Nutrition: There is a relationship between nutrition and lung cancer, where to eat fat and lack of vitamins increases the risk of lung cancer, while eating fruits and vegetables protect against lung cancer.

· Genetic factors: There are important genetic factors, where the presence of lung cancer in a first-degree relatives (parents, brothers and sisters) increases the risk of lung cancer.

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The causes and risk factors of stomach cancer

The causes and risk factors of stomach cancer
  
There are many factors that increase the risk of stomach cancer. The factors often lead to 

chronic inflammation of the mucous membrane of the stomach, which causes cancerous 

changes in the cells of the mucous membrane. The most prominent of these factors are:

    Nutrition: apparently, the feeding of great importance in case of stomach cancer. Eating 

salted and smoked two key employees. The canning and starches greatly increase the risk 

of gastric cancer. Other factors in nutrition are:
- Drinking unclean water.
- Do not store food in the refrigerator.
- Do not eat fruits and vegetables, fiber, fats and proteins.

    Smoking increases the risk of stomach cancer.
  
  High intake of alcoholic beverages increases the risk of stomach cancer.
   
 Gender: As mentioned, the gastric cancer affects men more than women.
    
 MRSA infection Helicobacter portal: linked to some cases of cancer of the stomach, as they

lead to chronic inflammation and so for stomach cancer after decades.
   
 Gastric ulcers: only 1% of cases of gastric ulcers turn to stomach cancer.
   
 The absence of an acidic environment in the stomach: it leads to the spread of some types 

of bacteria that produce harmful substances lead to stomach cancer. Lacking the acidic 

environment in several cases:
Pernicious Anemia

 Atrophic Gastritis

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Causes and risk factors for thyroid cancer

Causes and risk factors for thyroid cancer

Like any other cancer, causes thyroid cancer is unknown, but the cancer is generally 

caused 

by a series of mutations that are inherited or occur during the life of the genetic material of 

people.
Nevertheless know some risk factors that increase the possibility of follicular cancer, 

namely:

    Exposure to radioactive materials in abundance, either from the environment or those 

used for medical purposes for the diagnosis or treatment. Risk is directly proportional to the 

amount of radiation and with how much was her early exposure. It is worth mentioning that 

the radiation used in the diagnosis of dental disease is large and does not constitute a risk 

factor at all.

Generation: Most cases occur between generation 25 and 65.
  
Sex: Women more likely.
 
 Iodine deficiency: Today is not a problem in the Western world.
 
 Family history of thyroid disease in general and cancer in particular.
   

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Types of brain tumors

There are several cells in the brain, tumors may arise from all the cells in the brain. Where there are nerve cells,  microglia - a helper cells of nerve cells and are in all parts of the nervous system - and the membrane surrounding the brain cells. Brain tumors are classified into several types according to several criteria, including the type of cells that arise from brain tumor, and the fact that a cancerous tumor or benign (non-cancerous). Type may be benign and then turns cancerous in some cases.Different prevalence of brain tumors, according to a special type of brain tumors, as some tumors stand out among young people and children, while other highlights in the elderly.



The most important types of brain tumors are:

· Glioma tumor: arises from glial cells, and has several types depending on the type of cell that the tumor arises. Some tumors are benign and some are cancerous. The most dangerous species, most notably is  Gliobalstoma which shows young people have more than others.


Meningeal tumor : membranes surrounding the brain called meningitis.. Tumor arising from this tissue tumor called meningeal. Highlights tumor meningitis in older people, especially after the age of forty, and is often non-cancerous. Meningeal tumor is the most common.·  Schwannoma: tumor arises from the other cells in nerve membranes, and be benign in most cases, but it may worsen to become cancerous.· Many other types of brain tumors may arise from the membranes of the brain, lymphocytes, or from glands in the brain.

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What is Breast Cancer

What is Breast Cancer



Breast cancer is cancer of the breast tissue, and lead to malignant tumors. May affect breast cancer in women or men, but it is more common in women and is the most common cancers in women. Breast cancer affects women of every eight women. Breast cancer may be asymptomatic, but it leads to the symptoms of pain  or lump in the breast. Possible that breast cancer spreads to many members, or lead to complications. Because breast cancer is a common cancer, there is the importance of early detection and by screening tests. Breast cancer can be treated several possibilities, possibilities include treatment available surgical treatment, chemotherapy, radiotherapy and hormone therapy. Not all tumors in the breast are breast cancer, some tumors are benign and some are cancerous.

Breast cancer is the most prevalent type of cancer among women, which is the second leading cause of death from cancer in women. Breast cancer affects women of every eight women, and leads to the death of one of every fourteen women. Breast cancer affects women in the age applicants, especially age 65 and above. Although breast cancer may spread and lead to death in many cases, but that early detection breast cancer can be treated and cured.

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