Based on research, there are more than 100 types of cancer these days. These types have different causes and they also have different unique characteristics. They have causes, risk factors and signs and symptoms. All types of this disease are chronic and life-threatening though when they are diagnosed early, the rate of survival is also high. Every year thousands of people die because of this terrible disease. All organs of the body can be affected by cancer.
Each type of cancer has its own manifestation. But there are some risk factors that can be associated with all types. One of the most common risk factor is family history. People with a family history of any kinds of the disease are at risk of developing it. In addition, an unhealthy lifestyle can also cause many kinds of cancer. Eating unhealthy foods, and especially those rich in fat, and a sedentary lifestyle can lead to the development of several kinds. Genetics can also play a role for some kinds of the disease. Changes in certain genes can cause some types. Cigarette smoking and too much alcohol take can also contribute to the development of the disease.
Most Common Cancer
Based on studies done in the US, there are 12 common types of cancer. Lung cancer, which tops the list of the most common type, is also the leading cause of death among men and women. The other common types are bladder, colon and rectal, kidney, breast, and endometrial cancer. The remaining 6 common cancers are melanoma, non-Hodgkin lymphoma leukemia, prostate, pancreatic and thyroid cancer.
Brain cancer can affect both adults and children and they can be benign or malignant. Some types of the disease can be asymptomatic which means that they do not have any signs or symptoms. These kinds of brain diseases are usually diagnosed in their advance stage only. There are 8 kinds of brain cancer. This type, which may occur in childhood are: brain stem glioma, ependymoma, visual pathway and hypothalamic glioma and cerebellar astrocytoma. Brain tumor affects adults.
Women are basically the ones affected by breast cancer although these days a very small percentage of men can also develop the disease. Based on studies at least 200,000 women are affected by breast cancer in the US. There are five common types of this disease of the breast area. There are inflammatory breast, lobular carcinoma in situ, ductal carninoma in situ, Paget's disease of the nipple and invasive breast cancer.
Digestive and Gastrointestinal Cancers
All the organs of the digestive and gastrointestinal system can be affected by the disease. Examples are anal, colon, liver, bile duct, pancreatic and rectal cancer. Other types of the disease under these systems include gallbladder, stomach, small intestine cancer, esophageal and carcinoid tumor.
There are many more kinds of cancer which affects the different systems of the body. For instance, the endocrine system can be affected by pituitary tumor and parathyroid cancer. The genitourinary system can also develop penile, testicular, urethral and bladder cancer. Thousand of women also suffer from gynecologic cancers every year such as cervical cancer, ovarian cancer, vulvar cancer and endometrial cancer.