Skin cancer is malignant growth of the skin cells. You can see a good exemple of this type of cancer on this photo. Skin cancer is different from many other forms of this disease, because it´s clearly visible. There are 3 basic types of skin cancer – basal cell carcinoma, squamous cell carcinoma and malignant melanom. The last is the most dangerous type of skin cancer, because nor basal cell carcinoma neither squamous cell carcinoma usually don´t mestastize.

Colon cancer is very dangerous. Every year more than 600 000 people die all around the world because of coloractal cancer. It´s a 3rd most common form of cancer. Basically, it includes cells with cancerous growth in appendix, rectum and colon.