<unk>  is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.<unk>  can be difficult to diagnose because its<unk>  and symptoms are often nonspecific, meaning they may be general phenomena that do not point directly to a specific disease process. In medicine, a<unk> is an objective piece of data that can be measured or observed, as in a high body temperature (fever), a rash, or a bruise. A symptom, by contrast, is the subjective experience that may<unk> fy a disease, illness or injury, such as pain, dizziness, or fatigue.<unk>  and symptoms are not mutually exclusive, for example a subjective feeling of fever can be noted as<unk> by using a thermometer that registers a high reading. Because many symptoms of<unk>  are gradual in onset and general in nature,<unk>  screening (also called<unk>  surveillance) is a key public health priority. This may include laboratory work, physical examinations, tissue samples, or diagnostic imaging tests that a community of experts recommends be conducted at set intervals for particular populations. Screenings can identify<unk> s before symptoms develop, or early in the disease course. Certain<unk> s can be prevented with vaccines against the viruses that cause them (e.g., HPV vaccines as prevention against cervical<unk> . Additionally, patient education about worrisome symptoms that require further evaluation is paramount to reduce morbidity and mortality from<unk> . Symptoms that cause excess worry, symptoms that persist or are unexplained, and/or the appearance of several symptoms together particularly warrant evaluation by a health professional.
Cancer signs and symptoms
Cancer cluster
Vegetative symptoms
Signs and symptoms of pregnancy
Oral and maxillofacial pathology
symptoms of Neoplasm
Soft tissue pathology
Cancer pain