Reasons for Excessive Underarm Sweating
Excessive sweating under the arms, also known as axillary hyperhidrosis, refers to an abnormally high rate of perspiration without a clear underlying cause. This condition is quite common and often begins during childhood or adolescence; however, some individuals may experience it after reaching adulthood. Sweating is a natural physiological response triggered by various factors such as elevated temperatures, emotional stimuli like anger, anxiety, and fear, in addition to physical exertion. In cases of hyperhidrosis, the reasons can vary depending on the type experienced by the individual. Below is a detailed explanation:
Primary Focal Hyperhidrosis
Primary focal hyperhidrosis is a hereditary condition that can be passed down through family lines and is not associated with any underlying health issues. This form is the most prevalent type of hyperhidrosis, with symptoms typically emerging before the age of 25. It is characterized by increased activity of the nerves that stimulate the sweat glands, leading to excessive sweating even in the absence of triggers such as high temperatures or strenuous activity. However, anxiety and anger may exacerbate the condition, which commonly affects the underarms, hands, feet, and sometimes the scalp.
Secondary Generalized Hyperhidrosis
Secondary generalized hyperhidrosis occurs as a result of a medical condition or as a side effect of certain medications, leading to increased sweating in specific areas or multiple sites across the body, including nocturnal sweating. This form typically develops in adulthood and can be attributed to numerous factors, including:
- Hot flashes following menopause.
- Psychological anxiety.
- Low blood sugar levels.
- Nervous system disorders.
- Hyperthyroidism.
- Parkinson’s disease.
- Diabetes.
- Cardiovascular issues, such as heart attacks.
- Lung diseases.
- Stroke.
- Tuberculosis.
- Spinal cord injuries.
- Certain cancers.
- Acromegaly.
- Pheochromocytoma (tumor in the adrenal gland).
- Carcinoid syndrome.
- Side effects of specific medications, both prescription and over-the-counter, although this is a rare occurrence. Medications known to cause excessive sweating as a side effect include certain antidepressants like desipramine, nortriptyline, and protriptyline.
When to Consult a Doctor
There are specific circumstances surrounding excessive underarm sweating that warrant a consultation with a medical professional rather than ignoring the issue. These include:
- Experiencing sweating in cool environments without any physical exertion.
- Excessive sweating that stains clothing, particularly during sleep.
- Accompaniment of sweating with other symptoms such as chest pain, heart palpitations, fever, or sudden blood loss.
Video on Causes of Excessive Sweating
For more information about excessive sweating and its causes, please watch the video.