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Symptoms Beginning With O
1 symptoms in this guide begin with the letter O. Every name links to a plain-language page covering what the symptom can feel like, the conditions it can be associated with, its red flags, and what a clinician may do.
A B C D E F G H I J K L M N O P R S T U V W
| Symptom | Category | What it can feel like |
|---|---|---|
| One-sided facial weakness | Brain & Nerves | One-sided facial weakness means one side of the face droops — the smile is uneven, the eye may not close fully, and sounds may seem loud in that ear. It has two big… |
Please note: This page is educational information about a symptom. A symptom alone cannot diagnose any condition, and the causes listed here are possibilities, not a diagnosis. If you are worried about a symptom — especially one that is new, severe, getting worse or not going away — please see your own clinician, who can examine you and arrange tests. In an emergency, call your local emergency number.