Doctor (title) Facts For Kids

The word Doctor comes from a Latin verb that means “to teach.” Long ago, it named people who taught at universities and who were very learned. Over time, the word became a title for people who earned very high university degrees, and for those who care for sick people.

Today you might meet a doctor in a hospital or see “Dr” on a nameplate at school. Some doctors have a degree called a PhD, which shows they studied deeply about a subject. Other doctors are medical doctors who help people stay healthy or get better when they are ill.

In medieval Europe, universities began giving a special license to people so they could teach. This license was called licentia docendi, which means permission to teach everywhere. At first, the Church and the oldest schools kept close control of who could get this license.

Over time, the right to teach moved into the new universities. The earliest doctorates were in big subjects like theology (religion), law, and medicine. Back then, being a “doctor” meant you were a trusted teacher and scholar.

People are usually called “Doctor” if they have a doctoral degree or if they are registered medical doctors. When you speak to them, you might say “Doctor Smith” or “Dr Smith.” Some special cases mix titles: a person who is a minister and a doctor might be called “The Revd Dr,” or a judge with a doctorate might keep “Dr” plus their honor.

In Britain, surgeons often use older titles like Mr, Mrs, Ms, or Miss because of long tradition. Other honors such as Professor, Sir, or Dame can also appear with a name if a person has those ranks.

Different places write the short form of “Doctor” differently. In British English people usually write Dr without a period. In American English people often write “Dr.” with a period. Postnominal letters that show degrees, like PhD or DPhil, are usually written without dots in British use and sometimes with dots in older American use.

Official mail rules, such as those used by postal services, often remove punctuation to keep addresses simple. So whether to include a dot or not depends on the country and the style you follow.

When you use “doctor” as a noun, it can mean two main things: a person who holds the highest university degree (often a PhD or DPhil) or a medical practitioner who treats patients. Different countries name and place these degrees in different university levels, so what a degree looks like can change from place to place.

Medical qualifications also have names like MBBS, MD, or DO in some countries. These show the person trained in medicine. Both kinds of doctors studied a lot, but a PhD focuses on research while medical degrees focus on caring for people.

In English-speaking countries, the title “doctor” was first used for people with high degrees in areas like divinity (church studies), law, medicine, and music. During the 1800s and early 1900s the modern research degree called the PhD became more common in Britain and America.

Because the title was not always tightly controlled, some people used it when they should not. That made some official places careful about when to call someone “Doctor.” Still, many patients and communities have long called medical practitioners “doctor,” and that use continues today.