A hematoma is a localized swelling anywhere within the soft tissue spaces of the body that is filled with blood. The blood is usually clotted or partially clotted.
Depending on the location and size, a hematoma may or may not cause symptoms and signs. In some cases, a visible swelling is noticeable, or an area of skin redness, pain or tenderness, and warmth may be present. A hematoma present within the skull can exert pressure on the brain, leading to neurologic symptoms that can be life-threatening.
Causes of a hematoma
Other hematoma symptoms and signs
- Neurologic Problems Like Difficulty Speaking, Falling, or One-Sided Weakness
- Pain or Tenderness
- Skin Redness
- Visible Swelling
- Warm Skin
Main Article on Hematoma Symptoms and Signs
Pictures, Images, Illustrations & Quizzes
Bruises: Causes, Colors, and Treatments
How do bruises work? When is a bruise serious? Bruises are painful, colorful marks under the skin that appear after an injury, or...
First Aid Emergencies: When to Call 911
It’s not always easy to tell the difference between a minor bump on the head and a serious head injury. Here are some situations...
Trauma and First Aid Quiz: Training and Supplies
What should be in your first-aid kit? Take this quiz to understand trauma and learn the truth about how to administer first aid.