# Can internal bleeding occur without pain? Canonical page: https://clinicsjo.com/en/faq/can-internal-bleeding-occur-without-pain Language: en Category: first_aid Publisher: ClinicsJo Published: 2026-09-13T08:09:50.819Z Content updated: 2026-09-13T08:09:50.819Z Translation (ar): https://clinicsjo.com/ar/faq/can-internal-bleeding-occur-without-pain Yes, internal bleeding can occur without obvious pain in some cases, which makes it difficult to detect. For example, there may be no warning signs of Vitamin K Deficiency Bleeding (VKDB) in infants before a life-threatening condition begins. This bleeding can occur anywhere inside or outside the body, and when it is internal, it can be difficult to notice. It is common for an infant with VKDB to suffer from bleeding in the intestines or the brain, which can lead to brain damage and even death [\[1\]](). Internal bleeding is the loss of blood inside the body, where blood leaks from blood vessels or organs. Internal bleeding can become life-threatening very quickly and requires immediate medical attention [\[2\]](). ## Potential Symptoms of Internal Bleeding Although pain may not always be present, there are other signs and symptoms that can indicate internal bleeding. These may include signs of shock, such as confusion or decreased alertness, clammy skin, dizziness or lightheadedness after an injury, low blood pressure, pale skin, rapid pulse, shortness of breath, and weakness [\[2\]](). In addition, symptoms of internal bleeding can include the following [\[2\]](): - Abdominal pain and swelling. - Chest pain. - Changes in skin color. - The presence of blood exiting a natural opening in the body, such as blood in the stool (appearing black, maroon, or bright red), blood in the urine (appearing red, pink, or tea-colored), blood in vomit (appearing bright red or brown like "coffee grounds"), or vaginal bleeding (heavier than usual or after menopause). ## Internal Bleeding in Infants and Vitamin K Deficiency Infants are particularly vulnerable to Vitamin K Deficiency Bleeding (VKDB) until they begin eating regular foods, usually at 4–6 months of age, and until their natural gut bacteria begin to produce vitamin K. Infants are born with very small amounts of stored vitamin K because only small amounts pass to them through the placenta from their mothers. Additionally, breast milk contains low amounts of vitamin K, so exclusively breastfed babies may not receive enough vitamin K from breast milk alone [\[1\]](). VKDB can be easily prevented by giving infants a single injection of vitamin K into the muscle immediately after birth, which protects the child from this bleeding [\[1\]](). ## When to Seek Emergency Medical Help Immediate emergency medical help should be sought if internal bleeding is suspected, as it can quickly become life-threatening [\[2\]](). If the bleeding is severe, if you believe there is internal bleeding, or if the person is in shock, call for emergency assistance. Signs of shock include confusion, clammy skin, dizziness, low blood pressure, pale skin, rapid pulse, shortness of breath, and weakness [\[2\]](). It is important not to attempt to diagnose the condition yourself. If any of the above symptoms occur, especially after an injury or accident, you must seek immediate medical care. Medical professionals can evaluate the condition, determine if internal bleeding exists, and take necessary measures. For more information on when bleeding is concerning, you can visit [Bleeding: When is it normal and when does it warrant concern? (Arabic)](). ## Medical references - [About Vitamin K Deficiency Bleeding]() - [Bleeding]() General health education; not a substitute for individualized clinical assessment. Citation URL: https://clinicsjo.com/en/faq/can-internal-bleeding-occur-without-pain#answer