What could be the reason for a child having a body temperature of 35°C and sweating while asleep?

A child's body temperature dropping to 35°C while asleep, accompanied by sweating, may be due to physiological factors or pathological conditions such as calcium deficiency or hypothyroidism. Appropriate management should be chosen based on the underlying cause. The details are as follows:

1. Physiological Factors

If a child sweats heavily after intense physical activity and the sweat is not wiped off promptly, evaporation of sweat from the skin surface can lead to a drop in body temperature. In such cases, it's important to wipe away sweat promptly and maintain clean, dry skin.

2. Pathological Factors

1) Calcium Deficiency

Calcium deficiency may increase sympathetic nervous system activity, leading to excessive sweating from overactive sweat glands. As sweat evaporates from the skin, body temperature may decrease. Under medical guidance, calcium supplements such as calcium carbonate granules, calcium lactate granules, or calcium gluconate oral solution can be taken to improve the condition. Additionally, consuming calcium-rich foods like dried shrimp, bone soup, or increasing sun exposure can help enhance calcium absorption.

2) Hypothyroidism

Hypothyroidism results in reduced synthesis and secretion of thyroid hormones, lowering the body's metabolic rate and potentially causing low body temperature and sweating. Under a doctor's supervision, medications such as levothyroxine sodium tablets or thyroid tablets can be used to supplement thyroid hormones and alleviate symptoms.

In addition, other possible causes include overdose of antipyretic medications, anemia, or sepsis. If the child experiences any accompanying discomfort, prompt medical evaluation is recommended to establish an accurate diagnosis.