Cancer is a broad term used to describe a group of diseases in which abnormal cells grow uncontrollably and spread to other parts of the body. In a healthy body, cells grow, divide, and die in a controlled manner to maintain normal function. Cancer begins when this process breaks down. Instead of dying when they should, damaged or abnormal cells continue to grow and multiply. Over time, these cells can form a mass known as a tumor; however, some cancers, such as leukemia, do not typically form solid tumors.

Understanding cancer has led to improved prevention, screening, and treatment options. Regular health checkups, a balanced lifestyle, and awareness of warning signs can help reduce risk. Reliable health information platforms such as dosepharmacy also help people learn about conditions, treatments, and the importance of early medical guidance, empowering individuals to make informed healthcare decisions.

Cancer develops due to changes, or mutations, in a cell’s DNA. These mutations can be inherited or caused by external factors such as smoking, radiation, infections, poor diet, or exposure to harmful chemicals. DNA controls how a cell grows and functions, so when it is damaged, cells may begin to divide rapidly without control. The body’s natural repair mechanisms sometimes fail to fix these errors, allowing abnormal cells to survive and multiply.

As cancer progresses, cancerous cells may invade nearby tissues and disrupt normal organ function. Some cancer cells can break away from the original tumor and travel through the blood or lymphatic system to other parts of the body, a process known as metastasis. This spread makes cancer more difficult to treat and is a major cause of cancer-related complications. Early detection is critical because cancer is easier to manage before it spreads extensively.