After graduating as a doctor comes one of the most important decisions, which will determine in the area of medicine you will develop the rest of your life. To take this decision we recommend introspection and self-knowledge, which evaluates those aspects about your personality that can guide you to define your field of work in medicine. It is also important that you project that decision in the future if you would be willing to keep it in time. To help you with this difficult task, we will give you some tips that can guide you to discover special quality you can have big potential and preference: 1) One of the main steps is to define which area of medicine you feel most affinity, if you want careers that cover the clinical, surgical or medical-surgical part, to define this you have to evaluate which environment you would like to develop daily in practice if in an operating room, in an office, in the area of hospitalization or research. 2) Another important aspect is to recognize the degree of doctor-patient interaction that you like and prefer, since there are people who prefer specialties that have a lower degree and contact with the patient, such as pathological anatomy, diagnostic imaging, epidemiological medicine among others, and other areas where contact with people is constant and daily, that depends a lot on your personality traits, if you are introverted or extroverted and the degree of rapprochement with the people you prefer. 3) As we are talking about a decision that influences your long-term life you have to be aware to what extent you are willing to sacrifice your quality of life, this involves the fact that many specializations have to constantly guard, long working hours in the operating room, and they must be constantly available in cases of emergencies with their patients. This happens in the case of intensivist doctors, internist doctors, obstetric gynecologists and others. 4) It is also important to evaluate which age groups you would like to work, whether with the child population, with mixed groups or elderly people, as well as taking into account that it is equivalent to the sensitivity or strength you have to constantly face patients in terminal state, for example in the case of oncology, intensivist medicine, etc., or if you feel more comfortable working with patients in a chronic, more stable state, such as dermatology, endocrinology. 5) Find out if you have an affinity for working in areas of medical research or teaching and that you like working as a team since there are areas of medicine where you constantly need to formwork teams both in guards and in periodic sessions. 6) Another transcendental aspect is about the level of stress that you are willing to handle if you are a person who likes action and can withstand specialties where a higher level of stress is handled, such as areas where they lead to perform intervention techniques, if you prefer an area where development does not require high emotional and physical demands, as in specialties such as psychiatry and family medicine. 7) It is very important to evaluate the economic aspect of each specialty. While it is true that the doctor must feel a lot of vocation in what he does, it is also valid analysis of the economic benefits that different areas of medicine can offer; there are certain specializations such as plastic surgery, cardiology, ophthalmology, dermatology among others, which can generate more income than other specializations. 8) Currently, technology is associated with medicine, so in these times it should also be taken into account how closely the specialty is linked to technology and if it would please it, can take a specialty where the use of technology greater than in others, for example laparoscopic, bariatric or imaging surgery.