Some causes of broken blood vessels in the eyes are severe coughs, strong sneezes, vomiting, lifting heavy weights and straining according to the Mayo Clinic. In some cases, there is no cause for this problem. The rupture of a blood vessel in the eyes is called a subconjunctival hemorrhage.Know More
A subconjunctival hemorrhage is a bright red spot that forms in the conjunctiva. The conjunctiva is the transparent layer that covers the white part of the eyes. Because a subconjunctival hemorrhage will resolve on its own, no treatment is necessary for it according to WebMD.
When blood accumulates in the anterior chamber (the space between the cornea and iris), it also can cause a red spot. However, this eye condition is called a hyphema and can be more serious. Often caused by a trauma to the eyes, a hyphema may require a visit to the ophthalmologist.
If you experience any eye problems, you should seek proper medical advice for your specific condition.Learn more about Organs
Scarlet fever is contagious and typically contracted through fluids from the throat and nose when an infected individual coughs or sneezes, according to KidsHealth. It can also be spread through eating utensils and cups. Scarlet fever is caused by an infectious group-A streptococcus bacteria, which also causes strep throat.Full Answer >
While it is commonly believed that a bacterium carried by fleas caused the Black Death, also known as the Black Plague, more recent epidemiological research suggests that the cause was an airborne contagion spread by sneezes, coughs and touch. Originating in the Far East, the plague in Europe first hit Turkey and several Mediterranean islands, then moved into the northern Mediterranean ports and swept north.Full Answer >
The Mayo Clinic lists the causes of bags under the eyes as age, heredity, fluid retention and allergies. Bags under the eyes are generally not a medical concern, but for most people, having puffy bags under their eyes is a cosmetic worry.Full Answer >
Arteries have much thicker walls than other blood vessels in order to withstand the higher blood pressure that propels oxygenated blood away from the heart. Arteries are also supported by thick muscles and elastic fibers, unlike veins and capillaries, which are subjected to a much lower level of blood pressure.Full Answer >