Bleeding Also called: Hematoma, Hemorrhage Summary Bleeding is the loss of blood. It can happen inside or outside the body. Bleeding can be a reaction to a cut or other wound. It can also result from an injury to internal organs. There are many situations in which you might bleed. A bruise is bleeding under the skin. Some strokes are caused by bleeding in the brain. Other bleeding, such as gastrointestinal bleeding, coughing up blood, or vaginal bleeding, can be a symptom of a disease. Normally, when you bleed, your blood forms clots to stop the bleeding. Severe bleeding may require first aid or a trip to the emergency room. If you have a bleeding disorder, your blood does not form clots normally. Specifics Anemia Due to Excessive Bleeding Merck & Co., Inc. Cerebral Cavernous Malformation and Hemorrhage Angioma Alliance Hematuria (Blood in the Urine) National Institute of Diabetes and Digestive and Kidney Diseases Intracerebral Hemorrhage Washington University, School of Medicine Intracranial Hematoma Mayo Foundation for Medical Education and Research MedlinePlus: Gastrointestinal Bleeding National Library of Medicine MedlinePlus: Vaginal Bleeding National Library of Medicine Nosebleeds American Academy of Family Physicians Subarachnoid Hemorrhage American Academy of Neurology Subconjunctival Hemorrhage (Broken Blood Vessel in Eye) Mayo Foundation for Medical Education and Research Array Bleeding Bleeding gums Bleeding into the skin Blood clotting Intraventricular hemorrhage of the newborn Subarachnoid hemorrhage Encyclopedia Bleeding during cancer treatment Blood in the semen Coughing up blood Epidural hematoma Nosebleed Splinter hemorrhages Subconjunctival hemorrhage Urine – bloody Children Blood in the Urine (Hematuria) (For Parents) Nemours Foundation Blood in the Urine (Hematuria) in Children (Beyond the Basics) UpToDate Dealing with Cuts (For Parents) Nemours Foundation Going with the Flow of Nosebleeds Nemours Foundation Nosebleeds (For Parents) Nemours Foundation What’s a Scab? Nemours Foundation Clinical Trials ClinicalTrials.gov: Hematoma National Institutes of Health ClinicalTrials.gov: Hemorrhage National Institutes of Health Find an Expert Find a Hematologist American Society of Hematology National Heart, Lung, and Blood Institute National Heart, Lung, and Blood Institute Treatments and Therapies First Aid: Cuts, Scrapes and Stitches American Academy of Family Physicians Severe Bleeding: First Aid Mayo Foundation for Medical Education and Research Genetics Genetics Home Reference: clopidogrel resistance National Library of Medicine Genetics Home Reference: warfarin resistance National Library of Medicine Genetics Home Reference: warfarin sensitivity National Library of Medicine Reference Desk Hematology Glossary American Society of Hematology Teenagers Nosebleeds Nemours Foundation Journal Articles Bleeding
