Public health nursing is a nursing specialty focused on public health. Public health nurses (PHNs) or community health nurses "integrate community involvement and knowledge about the entire population with personal, clinical understandings of the health and illness experiences of individuals and families within the population. Public health nurses work within communities and focus on different areas to improve the overall health of the people within that community. Some areas of employment for public health nurses are school districts, county or state health departments, and departments of correction. The public health nurse looks for areas of concern within the community and assesses and plans ways through which the concerns can be resolved or minimized. Some health concerns a public health nurse may work on are infection control, health maintenance, health coaching, as well as home care visits for welfare and to provide care to certain members of the community who may need it.

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Community health nursing, a field of nursing that is a blend of primary health care and nursing practice with public health nursing. The community health nurse conducts a continuing and comprehensive practice that is preventive, curative, and rehabilitative. The philosophy of care is based on the belief that care directed to the individual, the family, and the group contributes to the health care of the population as a whole. The community health nurse is not restricted to the care of a particular age or diagnostic group.

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Public Health Community Nursing provides nursing services in the home and community with a focus on communicable disease investigation and maternal-child health for high risk adolescents, women and their children. Public health refers to "the science and art of preventing disease, prolonging life and promoting health through organized efforts and informed choices of society, organizations, public and private, communities and individuals. It is concerned with threats to health based on population health analysis.

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Epidemiology is the study of the patterns, causes, and effects of health and disease conditions in defined populations. It is the cornerstone of public health, and informs policy decisions and evidence-based medicine by identifying risk factors for disease and targets for preventive medicine. Epidemiologists help with study design, collection and statistical analysis of data, and interpretation and dissemination of results (including peer review and occasional systematic review). Epidemiology has helped develop methodology used in clinical research, public health studies and, to a lesser extent, basic research in the biological sciences.

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Population health has been defined as "the health outcomes of a group of individuals, including the distribution of such outcomes within the group. It is an approach to health that aims to improve the health of an entire human population. Recently, human role has been encouraged by the influence of population growth there has been increasing interest from epidemiologists on the subject of economic inequality and its relation to the health of populations. There is a very robust correlation between socioeconomic status and health. This correlation suggests that it is not only the poor who tend to be sick when everyone else is healthy, heart disease, ulcers, type 2 diabetes, rheumatoid arthritis, certain types of cancer, and premature aging. 

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A nursing professional may operate, practise within all branches of nursing health care, including Agency Nursing, surgery, dentistry, Cardiac Care Nurses, Holistic Nurses midwifery, Nurse Anaesthesia, Military  pharmacy, psychology, Nurse Practitioner  nursing or allied health professions. A health professional may also be a public/community health expertise working for the common good of the society and to improve health in all types.
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Addictions Nursing is for nurses committed to the intervention, prevention, , treatment, and the most is management of addictive disorders including smoking, alcohol and other drug dependencies, nicotine dependencies, eating disorders, dual and multiple diagnoses and process drug addictions of alcohol, smoking and mental attention towards drugs and other negative activities.
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Rural health or rural medicine is the interdisciplinary study of health and health care delivery in rural environments. The concept of rural health incorporates many fields, including geography, midwifery, nursing, sociology, economics, and Tele health or telemedicine.

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Community psychiatric nurse is a psychiatric nurse based in the community rather than a psychiatric hospital. They form an integral part of community mental health teams. They are often patients' key workers within the NHS mental health system and are often the first port of call for further referrals to psychiatrists, psychotherapists and other mental health professionals. Community psychiatric nurses mainly visit people in their own homes but they also see people in other settings such as GP surgeries or the community mental health team base.

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A Home Health Care Nurse works with patients in their homes. These nurses mainly work with the elderly, but sometimes work with younger children who have developmental or mobility issues. A Home Health Care Nurse is great for people that would rather work outside of a hospital.

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The school nurse has a crucial role in the seamless provision of comprehensive health services to children and youth. Increasing numbers of students enter schools with chronic health conditions that require management during the school day. This policy statement describes for pediatricians the role of the school nurse in serving as a team member in providing preventive services, early identification of problems, interventions, and referrals to foster health and educational success.

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Nurse education consists of the theoretical and practical training provided to nurses with the purpose to prepare them for their duties as nursing care professionals. This education is provided to nursing students by experienced nurses and other medical professionals who have qualified or experienced for educational tasks. Most countries offer nurse education courses that can be relevant to general nursing or to specialized areas including mental health nursing, pediatric nursing and post-operatory nursing.

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A family nurse practitioner is a nurse practitioner who provides continuing and comprehensive healthcare for the individual and family across all ages, genders, diseases, and body systems. Primary care emphasises the holistic nature of health and it is based on knowledge of the patient in the context of the family and the community, emphasizing disease prevention and health promotion.

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Nurse midwife (CNM) is an advanced practice nurse in nurse midwifery, the nursing care of women during pregnancy and the postpartum period. Midwifery, also known as obstetrics, is the health science and the health profession that deals with pregnancy health, baby health, and the postpartum period (including care of the new-born), besides sexual and reproductive health of women throughout their lives. Midwifery explores continuity of care where one or more midwives have the primary responsibility for the continuity of care for childbearing women, with a multidisciplinary network of consultation and referral with other health care management. 

Tele health is the delivery of health-related services and information via telecommunications technologies. Tele health could be as simple as two health professionals discussing a case over the telephone or as sophisticated as doing robotic surgery between facilities at different ends of the globe.

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Oncology has become one of the major focus areas for pharmaceutical and biotechnology companies because of the high unmet need for improved treatments for multiple types of cancer. For an oncologist or an oncology nurse, finding the appropriate words to comfort a family who is facing the loss of a loved one can be difficult. This section addresses how different groups—oncologists, patients, and Nurses—think about end-of-life care issues. This section discusses an oncologist's responsibility and perspective when it comes to difficult subjects such as advanced cancer, hospice, do not resuscitate orders, cytotoxic therapy, supportive care, maintaining a patient's dignity, and imminent death. Articles in this series also discuss the role of spirituality and religion at the time of death, and the importance of good communication between the oncologist and family members throughout the dying process.

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Community Legal Advice is a government-funded advice service set up by the Legal Services Commission as part of the Community Legal Service. It aims to help people in England and Wales deal with civil legal problems, and is part of the legal aid programme in those nations.

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Occupational health nurses are registered nurses who independently observe and assess workers' health status with respect to job tasks and hazards. Using their specialized experience and education, they recognize and prevent health effects from hazardous exposures and treat workers' injuries and illnesses.

OHNs work with employers to develop innovative and business-compatible health and safety programs, in response to each organization's unique type of work, workforce, and work/community environments. They promote an interdisciplinary approach to health care and advocate for the employee's right to prevention-oriented, cost-effective health and safety programs.Occupational health nurses are registered nurses who independently observe and assess workers' health status with respect to job tasks and hazards. Using their specialized experience and education, they recognize and prevent health effects from hazardous exposures and treat workers' injuries and illnesses.

OHNs work with employers to develop innovative and business-compatible health and safety programs, in response to each organization's unique type of work, workforce, and work/community environments. They promote an interdisciplinary approach to health care and advocate for the employee's right to prevention-oriented, cost-effective health and safety programs.

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