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  1. Coma: What It Is, Causes, Signs & Treatment - Cleveland Clinic

    Aug 25, 2025 · A coma is a deep unconscious state where you can’t wake up or respond, even to pain or loud sounds. Head injuries, strokes, infections or overdoses, among other things, can …

  2. Coma - Symptoms and causes - Mayo Clinic

    Nov 26, 2024 · Coma is a state of prolonged loss of consciousness. It can have a variety of causes, including traumatic head injury, stroke, brain tumor, or drug or alcohol intoxication.

  3. Coma - Wikipedia

    Coma ... A coma is a deep state of prolonged unconsciousness in which a person cannot be awakened, fails to respond normally to painful stimuli, light, or sound, lacks a normal sleep …

  4. Coma: Types, Causes, Treatments, Prognosis - WebMD

    Jan 10, 2024 · During a coma, a person is unresponsive to their environment. The person is alive and looks like they are sleeping. However, unlike in a deep sleep, the person cannot be …

  5. Coma: Symptoms, Treatment, and Outlook

    Jun 19, 2025 · A coma is a state of unconsciousness. A coma can happen due to brain injury, lack of oxygen, or complications from conditions like diabetes and infection. Sometimes, doctors …

  6. Coma: Causes, diagnosis, treatment, and outlook - Medical News Today

    Apr 24, 2023 · A coma is a deep state of unconsciousness that can result from an injury or illness. In some cases, it lasts for just a few days, but in others, the person does not wake up.

  7. What is a Coma? Duration, Recovery, and Brain Damage Risk

    Coma is a state of unconsciousness in which the person doesn’t respond their environment. It can be caused by a number of factors – traumatic injuries (like a car crash), intoxication or …

  8. Coma: Types, Causes, Treatment, Recovery, and Outlook

    May 25, 2024 · A coma is a state of deep unconsciousness in which a person is unresponsive for a prolonged time. Although comas have many possible causes, they all involve temporary or …

  9. Coma Signs, Types, Causes, Prevention & Treatment

    What Is the Medical Definition of Coma? A coma is a deep state of unconsciousness in which individuals do not consciously respond to stimuli in their environment. What Can Cause a …

  10. Coma - StatPearls - NCBI Bookshelf

    Coma is defined as a state of deep unconsciousness, an eyes-closed unresponsive state. Coma is usually a transitory state though it may last for an indefinite or even prolonged period. …