Skin cancer is the uncontrolled and abnormal growth of the cells under the skin. In vigorous skin, new cells keep developing to replace the older cells under the skin. These customary cells keep multiplying and grow in a systematic way. A mass of tumor is formed, if these cells grow out of control.
Generally, if the growth of cells is limited and does not assault surrounding organs and tissues, then a skin tumor is considered as benign i.e. non-cancerous. If the mass of tumor surrounds and spreads the tissues, it is considered as cancerous or malignant.
Symptoms of Skin Cancer
Skin cancer usually develops on the exposure to the Sun. The common body parts where skin cancer starts developing are lips, backs of hands, face, upper trunk, lower legs, hairless scalp, arms and ears.
Skin cancer does not commonly involve genital areas, nail beds and underneath the feet, because these parts are rarely exposed to the sun. Lighter skin tones people are at the risk of developing skin cancer. A red or pink patchy skin along with itching and burning sensation occurs during skin cancer.
Common Types of Skin Cancer
There are four main types of skin cancer. These skin cancers are differentiated on the basis of their development under the three layers of skin.
Basal Cell Carcinoma
Carcinoma Basal cell carcinoma is one of the most general types of skin cancer. It has been accounted that out of all the skin cancer patients, 75% of them are affected with basal cell carcinoma. The most common body parts where this type of skin cancer develops are: hands, face and neck.
Basal cell carcinoma rarely spreads to the other parts of the body and is considered to be the highly treatable skin cancer. Symptoms of this skin cancer includes irritation along with redness, bleeding or oozing sores, pearly pink bump and scars that are white or yellow in color.
Squamous Cell Carcinoma
It is the second most common category of skin cancer. Squamous Cell Carcinoma usually develops in the skin areas that are exposed to the sun, more often. Such body parts are: face, ears and mouth. Although, it can develop in any part of the body, but these body parts are at the high risk of developing squamous cell carcinoma.
Symptoms of squamous cell carcinoma are the formation of bump that converts into an open sore. These sores have never healing tendency. Other symptoms are: reddish, ulcerative, flat spot on the skin. If these symptoms are left untreated, the cancer cells will quickly spread in the blood streams, lymphatic systems and nerve routes.
This type of cancer is considered to be the most noxious and dangerous. Trunks, legs and arms are at the highest risk of budding melanoma. It may develop on the other parts of the body, as well. It is very important to detect melanoma in its early stage, so that it can be treated. If identified late, it can lead to disaster. Symptoms of melanoma are: appearance of freckle, mole and a spot that keeps changing its size, shape and color.
Intraocular melanoma is the rarest form of skin cancer that affects the people of middle age. This type of cancer develops in the middle of the layers in the eyes. The symptoms includes blurred vision, dark spots in the white portion of the eyes, distorted pupil, pigmented spots on iris and loss of vision.
All the above mentioned types of skin cancers need to be treated in their early stages for the betterment of the skin.