Sleep hyperhidrosis, more commonly known as the night sweats, is the occurrence of excessive sweating (hyperhidrosis) during sleep. A symptom' (from Greek σύμπτωμα, "accident misfortune that which befalls" from συμπίπτω, "I befall" from A Sign is an indication of some fact or quality and a medical sign is an objective indication of some medical fact or quality that is detected by a Physician The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify Diseases The International Statistical Classification of Diseases and Related Health Problems 10th Revision ( ICD -10) is a coding of diseases and signs symptoms abnormal findings R00-R69 - Symptoms and Signs (R00-R09 Circulatory and Respiratory systems ( Abnormalities of Heart beat The International Statistical Classification of Diseases and Related Health Problems (most commonly known by the abbreviation ICD) provides codes to classify Diseases The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. Primary hyperhidrosis is the condition characterized by abnormally increased Perspiration, in excess of that required for regulation of Body temperature. Sleep is a Natural state of bodily rest observed throughout the animal kingdom The sufferer may or may not also suffer from excessive perspiration whilst awake.
Sleep hyperhidrosis may occur at any age, but is most commonly seen in early adulthood. For the 2008 British film by Noel Clarke see Adulthood (film.
Night sweats may occur for genetic reasons and may be relatively harmless. Genetics (from Ancient Greek grc-Latn genetikos, “genitive” and that from grc-Latn genesis, “origin” a discipline of Biology, is However, they can be distressing and disrupt sleep patterns if severe; the patient may be frequently awakened due to the discomfort of damp sleepwear.
One of the most common causes of night sweats in women over 40 is the hormonal changes related to menopause and perimenopause. Menopause is the permanent shutting down of the female Reproductive system, a considerable length of time before the end of the lifespan Menopause is the permanent shutting down of the female Reproductive system, a considerable length of time before the end of the lifespan This is a very common occurrence during the menopause transition years and while annoying, it is not necessarily dangerous or a sign of underlying disease. Some women experience night sweats during pregnancy due to hormonal changes. Pregnancy ( Latin graviditas) is the carrying of one or more offspring known as a Fetus or Embryo, inside the Uterus of a Female
It should be noted that while some causes of night sweats may be relatively harmless, others may not and can be a sign of a serious underlying disease. While there can be several possible causes of excessive sweating at night, it is important to distinguish night sweats due to medical causes from those that occur simply because the sleep environment is too warm, either because the bedroom is unusually hot or because there are too many covers on the bed.
A night sweat caused by a medical condition or infection can be described as ‘severe hot flashes occurring at night that can drench sleepwear and sheets, which are not related to an overheated environment’. 
True night sweats with medical causes should be properly investigated by a medical physician.
Certain medications, including anti-depressants (such as sertraline) have also been known to cause night sweats in some individuals. A Sign is an indication of some fact or quality and a medical sign is an objective indication of some medical fact or quality that is detected by a Physician A disease is an abnormal condition of an organism that impairs bodily functions and can be deadly Brucellosis, also called undulant fever, or Malta fever, is a highly contagious Zoonosis caused by ingestion of unsterilized Milk Cancer (medical term Malignant Neoplasm) is a class of Diseases in which a group of cells display uncontrolled Leukemia or leukaemia (Greek leukos λευκός, "white" aima αίμα, "blood" is a Cancer of the Blood Lymphoma a type of Neoplasm that originates in Lymphocytes (a type of White blood cell in the vertebrate Immune system) Cerebral palsy ( CP) is an Umbrella term encompassing a group of non-progressive, non- contagious conditions that cause Physical disability The telencephalon (tɛlɛnˈsɛfəlɒn cerebrum, or forebrain is the most Anterior or especially in humans most Dorsal region of the The brain stem (or brainstem) is the lower part of the Brain, adjoining and structurally continuous with the Spinal cord. A stroke is the rapidly developing loss of brain functions due to a disturbance in the blood vessels supplying blood to the brain Epilepsy is a common chronic Neurological disorder that is characterized by recurrent unprovoked seizures. Familial dysautonomia, or FD, sometimes called Riley-Day syndrome is a disorder of the Autonomic nervous system which affects the development and survival Traumatic brain injury. THIS PAGE IS FOR INFORMATION ON HEAD INJURY (NOT SPECIFICALLY THE BRAIN--> Head injury is Human immunodeficiency virus ( HIV) is a Lentivirus (a member of the Retrovirus family that can lead to acquired immunodeficiency syndrome Hypoglycemia or hypoglycaemia is the medical term for a pathologic state produced by a lower than normal level of Glucose ( sugar) in the blood Chromium deficiency is a disorder that results from an insufficient dietary intake of Chromium. The hypothalamus links the Nervous system to the Endocrine system via the Pituitary gland (hypophysis Menopause is the permanent shutting down of the female Reproductive system, a considerable length of time before the end of the lifespan Sleep apnea is a sleep disorder characterized by pauses in Breathing during Sleep. Pneumonia is an inflammatory illness of the Lung. Frequently it is described as lung Parenchyma / alveolar inflammation and abnormal Histoplasmosis, also known as Darling's disease, is a Disease caused by the Fungus Histoplasma capsulatum which was discovered in Subacute bacterial endocarditis (also called endocarditis lenta) is a type of Endocarditis (more specifically infective endocarditis Tuberculosis (abbreviated as TB for tubercle bacillus or T u' b' erculosis Bacillus --> is a common Chronic fatigue syndrome ( CFS) is the most common name given to a poorly understood variably debilitating disorder or disorders of uncertain causation Another cause could be withdrawal from various drugs (mdma, opiates, benzodiazepines, etc. MDMA ( 34-methylenedioxy- N -methylamphetamine) most commonly known today by the street name Ecstasy (often abbreviated E, X, For other uses see Opiate (disambiguation, or for the class of drugs see Opioid. The benzodiazepines (pronounced, often abbreviated to "benzos") are a class of Psychoactive drugs with varying Hypnotic ).