Concussion - Symptoms and causes - Mayo Clinic
Jan 12, 2024 · A concussion is a mild traumatic brain injury that affects brain function. Effects are often short term and can include headaches and trouble with concentration, memory, balance, mood …
Concussions: Signs, Symptoms, and Treatment - WebMD
Sep 30, 2025 · These symptoms can include trouble concentrating, problems with memory, headaches, changes in personality, mood swings, dizziness, fatigue, and insomnia for weeks to months.
Concussion: What It Is, Symptoms, Causes & Treatments
Aug 16, 2024 · What are concussion symptoms? Concussions stretch and injure nerves and blood vessels in your brain. They cause chemical changes that temporarily make your brain stop working …
Signs and Symptoms of Concussion | HEADS UP | CDC
Sep 15, 2025 · It can be hard to tell the difference between a possible concussion and a more life-threatening brain injury. Call 911 or go to your nearest emergency department if you notice any of …
28 Signs and Symptoms of a Concussion & When to See a Doctor
Immediate signs and symptoms of a concussion (appear minutes to hours after injury) may include confusion, headache, dizziness, memory loss, nausea or vomiting, balance problems, tiredness, …
Concussion Symptoms to Watch For - Verywell Health
Dec 7, 2025 · A concussion can cause dizziness, confusion, and headache after a hit to the head. If a child shows signs of a concussion, check them often, and see a doctor right away if symptoms appear.
8 Concussion Symptoms and When To Seek Help - Health
Feb 6, 2026 · Concussions can cause headaches, dizziness, and memory loss after a head injury. Severe symptoms like worsening headaches, seizures, or unusual behavior should be evaluated by …