Is drinking water harmful to health in the state of heatstroke?
Jul 29, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
Heatstroke patients lose large amounts of water and salt from their bodies. When conscious, drinking small amounts of lightly salted water or electrolyte water multiple times can help replenish lost substances and maintain the body's balance. In such cases, drinking water is beneficial and does not harm health. However, consuming large amounts of pure water within a short period can further dilute electrolytes in the body, potentially causing problems such as muscle cramps.
In general, drinking an appropriate amount of water containing electrolytes is harmless to health for individuals suffering from heatstroke. However, excessive consumption of plain water without guidance or forcing water into a patient who is unconscious may be harmful. If there are any concerns, it is recommended to seek medical advice in advance. Detailed explanation is as follows:
Heatstroke patients lose large amounts of water and salt from their bodies. When the patient is conscious, drinking small amounts of lightly salted water or electrolyte water multiple times can help replenish lost substances and maintain the body's balance. In such cases, drinking water is beneficial and does not harm health.
Drinking large amounts of plain water within a short period can further dilute electrolytes in the body, potentially causing muscle spasms and other issues. Forcing water into a patient who is unconscious may lead to water entering the trachea and cause suffocation. In such situations, drinking water can harm health.
When a patient has heatstroke, drinking water should be done methodically and adjusted according to the patient's level of consciousness. If discomfort occurs or if you are unsure how to proceed, promptly contact medical personnel to avoid worsening the condition due to improper hydration.
