What is cancer
Introduction to cancer
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of our body.
These contrast with benign tumors, which do not spread to other parts of our body.
And the other type is called malignant tumors which donot spread.
Possible sign and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss and a change in bowel movements.
While these symptoms may indicate cancer, they may have other causes. Over 100 types of cancers affect humans.
While these symptoms may indicate cancer, they may have other causes. Over 100 types of cancers affect humans.
CAUSES OF CANCER
* TOBACCO USE
Tobacco use is the cause of about 22% of cancer deaths.Cigarette smoking is the leading cause of preventable death and a major public health concern.
There are 1.1 billion tobacco users in our world. One person dies every six seconds from a tobacco related disease.
* OBESITY
Another10% are due to obesity.
Range 25–30 kg/m^2 as defined as overweight.
Obesity increases the likelihood of various diseases and conditions.
Particularly cardiovascular diseases, type 2 diabetes, obstructive sleep apnea, certain types of cancer, ostioarthritis and depression.
Range 25–30 kg/m^2 as defined as overweight.
Obesity increases the likelihood of various diseases and conditions.
Particularly cardiovascular diseases, type 2 diabetes, obstructive sleep apnea, certain types of cancer, ostioarthritis and depression.
Poor diet, lack of physical activitys or execive drinking of alcool.
Other factors include certain infections, exposure to ionising radiation and environmental pollutants.
In the developing world, 15% of cancers are due to infections such as Helicobacter pylori, hepatitis B, hepatitis C, human papilloma infection, and human immunodeficiency virus(HIV).
Approximately 5–10% of cancers are due to inherited genetic defects from a person's parents.
Cancer can be detected by certain signs and symptoms or screening tests It is then typically further investigated by medical imaging and confirmed by biopsy.
Other factors include certain infections, exposure to ionising radiation and environmental pollutants.
In the developing world, 15% of cancers are due to infections such as Helicobacter pylori, hepatitis B, hepatitis C, human papilloma infection, and human immunodeficiency virus(HIV).
Approximately 5–10% of cancers are due to inherited genetic defects from a person's parents.
Cancer can be detected by certain signs and symptoms or screening tests It is then typically further investigated by medical imaging and confirmed by biopsy.
DEFINITION OF CANCER CANBE AS FOIIOWS
Cancers are a large family of diseases that involve abnormal cell growth with the potential to invade or spread to other parts of the body.
They form a subset of neoplasms. A neoplasm or tumor is a group of cells that have undergone unregulated growth and will often form a mass or lump.
They form a subset of neoplasms. A neoplasm or tumor is a group of cells that have undergone unregulated growth and will often form a mass or lump.
SIGNS AND SYMPTOMS OF CANCER
When cancer begins, it produces no symptoms. Signs and symptoms appear as the mass grows or ulcerates.
The findings that result depend on the cancer's type and location.
Cancer is a "great imitator". Thus, it is common for people diagnosed with cancer to have been treated for other diseases, which were hypothesized to be causing their symptoms.
Local symptoms
* Esophagal cancer can cause narrowing of the esophagus making it difficult or painful to swallow;
* And colorectal cancer may lead to narrowing or blockages in the bowel.
* Masses in breasts or testicles may produce observable lumps. Ulseration can cause bleeding that.
* if it occurs in the lung, will lead to coughing up blood.
* In the bowels to anemia or rectal bleeding.
* In the bladder to blood in the urine.
* And in the uterus to vaginal bleeding.
* Although localized pain may occur.
* In advanced cancer, the initial swelling is usually painless.
* Some cancers can cause a buildup of fluid within the chest or abdomen
Metastasis.
* Unintentional weight loss.
* Fever.
* Excessive fatigue.
* Changes to the skin.
* Hodkin disease.
* leukemias.
* Cancers of the liver or kidney can cause a persistent fever.
* Enlarged lymph nodes(which can be felt or sometimes seen under the skin and are typically hard).
* Enlarged liver or enlarged spleen, which can be felt in the abdomen.
* Pain or fracture of affected bones and neurological symptoms.
CAUSES OF CANCER
* 90–95% of cases, are due to genetic mutations from ENVIRONMENTAL The remaining 5–10% are due to inherited genetics.
* Common environmental factors that contribute to cancer death include tobacco (25–30%).
* Diet and obesity (30–35%)
* Infections(15–20%).
* Radiation (both ionizing and non-ionizing, up to 10%).
* Stress, lack of physical activitys and pollution.
PATHOPHYSIOLOGY OF CANCER
CONLUSION
Cancer is one of the most painful and dangerous disease.
I'm just trying to give some information about this so that you may be get an escape.
Moreover reading and writing increases our ability of brain to solve things and memories.
You can easily understand WHAT IS CANCER from these simple discription.
THANKS FOR ALL READERS...
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