Is 35.1℃ considered a fever?

Fever refers to an elevated body temperature, and a temperature of 35.1℃ is generally not considered fever. The detailed explanation is as follows:
  Under normal circumstances, the human body maintains a relatively constant temperature through the regulation of the thermoregulatory center, which balances heat production and heat dissipation via neural and humoral factors. Fever is a medical term indicating a body temperature higher than normal. Normal body temperature is typically defined as 36–37℃ when measured under the armpit, and 36.3–37.2℃ when measured orally. A temperature above these ranges is classified as fever. However, since 35.1℃ does not exceed these values, it does not qualify as fever.
  In most cases, a body temperature of 35.1℃ falls below the normal range and may indicate insufficient energy production in the body. Prolonged exposure to cold environments can lead to excessive heat loss and reduced heat production, resulting in hypothermia. In such situations, physical warming measures such as wearing more clothing or using blankets should be actively applied. Additionally, drinking hot water or warm soups may help promote recovery of normal body temperature. Furthermore, pathological causes should also be considered, such as severe infections leading to septic shock, which require prompt medical attention.