Lack of Sweating in Children: Causes and Concerns

Q: Lack of Sweating in Children: Causes and Concerns

Hello： Body shape is largely determined by genetics, and sweating varies from person to person. <br>As long as the sweat glands are functioning normally and hydration is adequate, sweating will occur naturally. <br>It is important to consider whether water intake is sufficient, a

Anhidrosis

My son is in the first year of junior high school, with a height of 145.5 cm and a weight of 32 kg.
He has mild asthma and nasal allergies.
This year, I've noticed that he doesn't sweat much and doesn't seem to be sensitive to heat.
When the whole family exercises, he is the only one who doesn't sweat.
Recently, during the hot weather, he has been wearing several long-sleeved shirts and still doesn't seem to sweat.
I also have another son in the fifth grade, who is 142 cm tall and weighs 38 kg.
They eat almost the same foods, so why is there such a significant difference in their weights? I would like to ask the doctor if there is anything I should supplement for my older son.

grace, 30~39 year old female. Ask Date: 2004/04/20

Dr. Liang Hongjian reply Pediatrics

Hello: Body shape is largely determined by genetics, and sweating varies from person to person.
As long as the sweat glands are functioning normally and hydration is adequate, sweating will occur naturally.
It is important to consider whether water intake is sufficient, and since each individual's level of physical activity differs, the amount of sweating will also vary.
In terms of nutrition, it is essential to focus on what the body can absorb to achieve maximum effectiveness, with a principle of balanced food intake.
Dr.
Liang Hong-Jian, Pediatrics, Miaoli Hospital.

Reply Date: 2004/04/20

More Info

When it comes to understanding the lack of sweating in children, particularly in your son who is in the first year of junior high, there are several factors to consider. The absence of sweating, especially in the context of physical activity or heat, can be concerning and may indicate an underlying issue.
Firstly, it is essential to understand that sweating is a natural physiological response that helps regulate body temperature. When the body heats up, sweat glands produce sweat, which evaporates and cools the body down. If your son is not sweating, it could be due to several reasons:
1. Genetic Factors: Some individuals may have a genetic predisposition that affects their sweat glands. This condition, known as hypohidrosis, can lead to reduced sweating. If there is a family history of similar issues, this could be a contributing factor.

2. Medical Conditions: Certain medical conditions can affect sweating. For instance, conditions like cystic fibrosis, diabetes, or neurological disorders can impair the body's ability to sweat. Given that your son has mild asthma and nasal allergies, it is crucial to rule out any other underlying health issues that may be contributing to this symptom.

3. Medications: If your son is taking any medications, it is worth checking if reduced sweating is a known side effect. Some medications can interfere with the normal functioning of sweat glands.

4. Environmental Adaptation: Children can adapt to their environments differently. If your son is not sweating and does not seem to mind the heat, it could be that he has acclimatized to his surroundings. However, this should not be the only explanation, especially if it is accompanied by other symptoms.

5. Body Composition and Metabolism: The difference in body weight and composition between your two sons could also play a role. Your older son is lighter than his younger brother, which may affect how his body responds to heat and exercise. Factors such as muscle mass, fat distribution, and metabolic rate can influence sweating.

Given these considerations, it is advisable to consult a pediatrician or a specialist in pediatric endocrinology. They can conduct a thorough evaluation, including a physical examination and possibly some tests, to determine if there is an underlying condition that needs to be addressed.
In terms of dietary supplements or nutritional support for your older son, it is essential to focus on a balanced diet that meets his growth and developmental needs. Since he is on the lighter side, ensuring he consumes adequate calories, proteins, and essential nutrients is crucial. Foods rich in vitamins and minerals, particularly those that support metabolic health, such as fruits, vegetables, whole grains, lean proteins, and healthy fats, should be emphasized.
Additionally, hydration is vital, especially if he is not sweating. Encourage him to drink plenty of fluids, particularly water, to stay hydrated, especially during physical activities or hot weather.
In summary, while the lack of sweating in your son may not be immediately alarming, it is essential to investigate further to rule out any underlying health issues. Consulting with a healthcare professional will provide clarity and guidance on how to support your son's health and well-being effectively.

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