Anihidrosis refers to the inability of the body to sweat normally. Lack of sweat response to heat may lead to complications as the body fails to cool down. It leads to overheating and sometimes to potentially fatal condition like heat stroke.
The symptoms of anihidrosis often go unnoticed. It is caused by several factors like skin trauma and certain conditions. It may be seen as an isolated condition or associated with other conditions.
Localized anihidrosis may not require any specific treatment as sweating from other parts of the body compensate and cause adequate heat loss. When anihidrosis affects a large part of the body, it is important to find the underlying cause for the condition.
Absence of sweating may be localized, seen in some patches, or generalized. Areas that perspire try to compensate for the lack of sweat in other parts of the body. Thus, some parts of the body sweat profusely when compared to others. Generalized anihidrosis affects most parts of the body.
Body fails to cool properly and this causes heat exhaustion or heat stroke, particularly after physical exertion or hot weather. Anihidrosis may develop as a condition on its own or be associated with other conditions like diabetes and skin injury.
Abnormal functioning of the sweat glands is one of the most common causes of anihidrosis. It may be congenital or caused by other factors. The causative factors affect the nerves or skin resulting in abnormal sweating. Some other causes of anihidrosis are:
Major risk factors of anihidrosis are age, certain medical conditions, skin disorders, and genetic abnormalities. It is more common among children, and people above 65 years. Medical conditions that affect nerves, like diabetes, increase the risk of developing anihidrosis.
Psoriasis, exfoliative dermatitis, and scleroderma are skin disorders that cause scaling, rashes and dry skin, also are risk factors for anihidrosis.
Diagnosis of Anhidrosis is based on symptoms, medical history, and physical examination. Sweat test and skin biopsy also aid in identifying the abnormalities that lead to anihidrosis.
Thermoregulatory sweat test – this test is based on proportional sweat production to increase in temperature. In this test, the body is covered with alizarin red powder. This powder changes color from orange to purple with sweat.
Localized for of anihidrosis may not require specific treatment. But lack of sweating in most parts of the body is life-threatening and requires medical attention. Treatment of this condition is based on the underlying cause of anihidrosis.
Treatment also focus on controlling the symptoms of overheating.
Anihidrosis cannot be prevented as such, but the complications of the condition can be avoided. People with this condition should wear loose, comfortable clothing when it is hot. Avoid strenuous physical activity and stay indoors to avoid hear exhaustion and heat stroke.
Alum, alumin-p, alumin-s, beryl-m, calad, casc, chinin-s, cimx, Cina conv, Eup-per, eup-pur, gamb, kali-I, lac-h, lach, nux-m, nux-v, phel, thal-xyz, verat are some homeopathic remedies for scanty sweating. Acupuncture and hypnosis are also suggested in the treatment of anihidrosis.
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