The most common cancers around the world are:
Most Common Cancers among Men are Prostate cancer, Lung cancer, Colorectal cancer, Bladder cancer, Melanoma cancer, Kidney cancer.
Most Common Cancers among Women are Breast cancer, Lung cancer, Colorectal cancer, Uterine cancer, Thyroid cancer, Melanoma cancer.
When cells grow out of control, in the breast, It is called Breast Cancer. Breast Cancer can start at any part of the breast. A breast consists of three principal parts: lobules, ducts, and connective tissue. The lobules are the milk-producing glans. The ducts are tubes transport milk to the nipple. The connective tissue surrounds and holds together everything. Most breast cancers start in the lobules or ducts.
Lip and oral cavity cancer is a condition in which the lips or mouth develop cancer cells. Most lip and oral cavity cancers begin in squamous cells, the thin flat cells lining the inside of the lips, and the oral cavity. Those are called carcinomas of squamous cells. As the cancer increases, cancer cells may spread into deeper tissues. The use of Tobacco and Alcohol can affect the risk of lip and Oral Cancer of the cavity. Signs of Oral Cancer include a sore or lump in the lips or inside the mouth.
Cancer that starts in tissues of the cervixis called Cervical Cancer. Cervix is the organ connecting the uterus and vagina. Cervical Cancer is usually a slow-growing cancer that may not have symptoms but can be detected with regular Pap smear tests. Pap Smear is a screening test in which cells are scraped from the cervix and looked at under a microscope. Cervical Cancer is mostly caused by human papilloma virus (HPV) infection. It is highly preventable in if regular screening tests and a vaccine to prevent HPV infections are used.
Lung cancer starts in the lungs but may spread to lymph nodes or other organs throughout the body, such as the brain. Cancer from other organs might also spread to the lungs. Lung cancers are typically classified into two major groups, which are called small cell Lung Cancer and non-small cell Lung Cancer. Non-small cell Lung Cancer is more common. Non small cell Lung Cancer typically occurs in the outer part of the lung, in glandular cells. It can also begin in squamous cells. Small cell Lung Cancer typically begins in cells that line the bronchi of the lungs.
Stomach cancer also known as gastric cancer begins in the stomach. It arises as cancer cells develop in the stomach lining. Risk factors include smoking and infection by H. Pylori bacteria, or some hereditary conditions.
While Stomach Cancer is relatively rare compared to other types of cancer, one of the major dangers of this disease is its diagnostic difficulty. Since Stomach Cancer usually causes no early symptoms, it often goes undiagnosed until it spreads to other parts of the body. This makes treatment more difficult.
Oesophageal cancer develops when an uncontrolled growth of abnormal cells in the food pipe (oesophagus). The oesophagus is also called Gullet. It is the tube that carries food down to your stomach from your mouth. Oesophageal cancer may have no symptoms, or may be difficult to spot. Symptoms can include swallowing disorders, chest pain, voice hoarseness and chronic cough.
Leukemia is a type of cancer that involves blood cells. The important categories of blood cells are red blood cells (RBC), white blood cells (WBC), and Platelets. Leukemia usually affects WBC. WBCs are an essential component of immune response system the body.
Leukemia can be classified into 4 types:
Ovarian cancer is a condition in which cancerous cells are found inside, near, or on the outer layer of the ovaries, depending on the type and stage of the disease. An ovary is analmond-shaped organ, present on either side of the uterus. Ovaries store eggs, or germ cells, and produce the hormones oestrogen and progesterone. Ovarian Cancer is the fifth leading cause of death from cancer, in women aged 35-74.
Laryngeal cancer is a condition in which cancer cells grow in the larynx tissues. The larynx is a part of the throat, between tongue base and trachea. The use of Tobacco products and excessive Alcohol consumption are risk factors of laryngeal cancer. Symptoms of laryngeal cancer include a sore throat and Pain in the ear. Laryngeal cancer most often occurs in people older than 55 years. Men have a greater risk of developing laryngeal cancer.
Brain cancer is an overgrowth of your brains cells,which forms masses called tumors. Cancerous, or malignant, brain tumors tend to increase very rapidly. They interfere with the way your body works, and that can be life-threatening. Brain Cancer is quite uncommon, though. Individuals have less than 1 percent chance of developing a malignant Brain Tumor in their lifetime, according to the American Cancer Society.
Non-Hodgkin's Lymphoma (NHL) is a cancer that starts in the lymphatic system. NHL occurs when tumors start to develop in the lymphocytes. Lymphocytes are a type of white blood cells. NHL is more common than Hodgkin Lymphoma. The key difference between the Hodgkin and Non Hodgkin Lymphoma is the presence of Reed-Sternberg cell,an irregular kind of cell. Only Hodgkin's Lymphoma contains this type of abnormal cell.
Liver cancer begins in the liver. The liver continually filters blood circulating through the body, transforming the absorbed nutrients from the digestive tract into ready-to-use chemicals. The liver performs many other essential roles, such as elimination of toxins and other chemical waste from blood and preparation for excretion. The liver is easily accessible to cancer cells travelling in the bloodstream, because all the blood in the body has to pass through it. Most Liver Cancer is secondary or metastatic, which means it began elsewhere in the body.
Colon cancer starts in the large intestine. The colon is the end part of the digestive tract. Typically, Colon Cancer affects older adults although it can happen at any age. This generally starts as small, non-cancerous benign lumps of cells called polyps forming inside the colon. Some of those polyps may become colon cancers over time. Polyps can be small and may not show any symptoms. Therefore, doctors recommend regular screening tests to help prevent Colon Cancer. Colon Cancer is sometimes referred to as Colorectal Cancer.
Gallbladder cancer is a disease in which malignant cancer cells develop in the gallbladder tissues. Femalesare at increased risk of developing gallbladder cancer, compared to men. Gallbladder cancer signs and symptoms include jaundice, fever, and Pain.Papillary adenocarcinoma or papillary cancer is a rare type of gallbladder cancer that deserves special mention.
Hypopharyngeal cancer is a disorder in which malignant cells develop in the hypopharynx tissues. The hypopharynx is the lower part of the pharynx or throat. The pharynx is a hollow tube that starts behind the nose, descends down the neck and ends at the top of the trachea. Air and food pass through the pharynx to the oesophagus. Tobacco use and heavy drinking can affect the risk of developing Hypopharyngeal cancer. Symptoms include a sore throat and Pain in the ear.
Prostate cancer is a form of cancer that develops in the prostate gland. The prostate is a tiny walnut-shaped gland in men's pelvis. It is next to the bladder and can be checked with a digital rectal examination. Prostate Cancer is diagnosed in about 1 out of 9 men, during their lifetime.
Rectal cancer is a disease in which cancer cells develop in the rectum tissues. The rectum is located above the anus and below the sigmoid colon. The rectum and colon are adjoining parts of the digestive system and therefore cancers of the rectum or colon are sometimestermed as Colorectal Cancer. Colorectal Cancer is the second most common cancer among worldwide.
Bladder cancer starts when cells that make up the urinary bladder start to grow out of control.The bladder is a hollow organ in the lower pelvis. It has flexible, muscular walls that can stretch to hold urine and squeeze to send it out of the body. The bladder's main job is to store urine.Typically this cancer affects the older adults. It can be diagnosed early and treated effectively. It is likely to recur, so typically, follow-up testing is recommended. Blood in the urine is the most common symptom.
Thyroid cancer is a condition in which malignant cells develop in thyroid gland tissues. The thyroid is a gland near the trachea or windpipe. This is shaped like a butterfly, with a lobe to the right and a lobe to the left. The isthmus, a thin piece of tissue, binds the two lobes together. Nodules in the thyroid are normal and may not typically be cancerous. The risk of thyroid cancer may be affected by age, sex and exposure to radiation. Thyroid cancer signs include swelling or lumping in the neck.