Does the body have the ability to heal itself?
The human body usually has self-healing capabilities. However, if the disease is severe, it may exceed the body's self-healing ability and ultimately fail to heal on its own.
Under normal circumstances, the human body possesses immunity—its own defense mechanism—which identifies and eliminates foreign invaders such as bacteria, viruses, and fungi. It also deals with denatured, dead, damaged, aging cells, as well as diseased and virus-infected cells within the body. Therefore, when minor conditions occur, the body can often heal itself through its immune system. However, if a patient develops more serious diseases—such as pneumonia, nephritis, or meningitis—due to various factors, these conditions may surpass the body's capacity for self-recovery, resulting in failure to heal without medical intervention.
In daily life, maintaining a balanced diet and drinking plenty of water can help strengthen the body's immunity, resist invasion by pathogens like bacteria and viruses, and prevent illness.