After you fire up the barbecue grill, the charcoal briquettes you use as fuel are eventually reduced to a pile of charred remains and ashes. This residue contains recycled plant material and naturally occurring minerals, but it may also contain harmful chemicals.
Burst blood vessel in the eye. Straining, coughing or injuring your eye can sometimes cause a blood vessel to burst on the eye surface, causing a bright red blotch. This is called a subconjunctival haemorrhage.
Quick Answer. Broken blood vessels are most often caused by minor trauma, such as bruises and bumps, according to Nutra Legacy. However, Nutra Legacy also notes that broken vessels can occur as a result of the natural aging process. Certain illnesses and medications can also cause bleeding into the skin, according to Healthline.