1. Doctors are very necessary, they are next to God for sick and ill people.
2. There are several diseases. Only doctors fight against those diseases and treat infected people.
3. It is a doctor who saves many lives. If there had not been doctors many people had died because of diseases and ailments.
4. Only a doctor can understand the disease or any pain that is caused in human body and they prescribe medicines to alleviate our suffering.
5. They spend their whole life in studying and understanding the diseases caused in humans. Only they have proper skills and treatments to save lives.