
Subconjunctival hemorrhage (broken blood vessel in eye)
2021年9月21日 · A subconjunctival hemorrhage (sub-kun-JUNK-tih-vul HEM-uh-ruj) occurs when a tiny blood vessel breaks just underneath the clear surface of your eye (conjunctiva). In many …
Dry socket - Symptoms and causes - Mayo Clinic
2023年7月18日 · Usually a blood clot forms at the site where a tooth was removed. This blood clot is a protective layer over the underlying bone and nerve endings in the empty tooth socket.
Aflibercept (intraocular route) - Mayo Clinic
Check with your eye doctor right away if your or your child's eye becomes red, sensitive to light, or painful, or if you see flashes or sparks of light, have a change in vision, or feel increased pressure in the eye several days after the injection. This medicine may increase your risk of blood clots.
Stroke - Symptoms and causes - Mayo Clinic
2024年12月13日 · An ischemic stroke occurs when a blood clot, known as a thrombus, blocks or plugs an artery leading to the brain. A blood clot often forms in arteries damaged by a buildup of plaques, known as atherosclerosis.
Blood clots Causes - Mayo Clinic
2025年3月20日 · Blood clots are made when substances in the blood thicken and form a semisolid mass. This process may be triggered by an injury. Sometimes it occurs inside blood vessels that don't have an obvious injury. Once these clots form, they can travel to other parts of the body where they can cause harm.
Pulmonary embolism - Symptoms and causes - Mayo Clinic
2022年12月1日 · A pulmonary embolism (PE) occurs when a blood clot gets stuck in an artery in the lung, blocking blood flow to part of the lung. Blood clots most often start in the legs and travel up through the right side of the heart and into the lungs.
What to know about transient ischemic attack (TIA)
2025年1月23日 · A TIA provides an opportunity for you to take steps to prevent stroke. What causes TIA? A TIA happens for much the same reasons as ischemic stroke. In an ischemic stroke, a blood clot blocks the blood supply to part of the brain long enough to cause damage. It is the most common type of stroke.
Symptoms and causes - Mayo Clinic
In the arteries leading to your brain, you may have sudden numbness or weakness in your arms or legs, trouble speaking, slurred speech, sudden or temporary loss of vision in one eye, or drooping muscles in your face.
Stroke - Diagnosis and treatment - Mayo Clinic
2024年12月13日 · This medicine restores blood flow by dissolving the blood clot causing the stroke. By quickly removing the cause of the stroke, it may help people recover more fully from a stroke.
Transient ischemic attack (TIA) - Symptoms and causes
2024年2月9日 · In an ischemic stroke, a blood clot blocks the blood supply to part of the brain. In a TIA, unlike a stroke, the blockage is brief and there is no permanent damage.