Use a comma to separate nonessential elements from a sentence. More specifically, when a sentence includes information that is not crucial to the message or intent of the sentence, enclose it in or separate it by commas.
Genital warts are a sexually transmitted infection (STI) caused by certain strains of the human papillomavirus (HPV). These skin growths can cause pain, discomfort, and itching. They are especially dangerous for women because some types of HPV can also cause cancer of the cervix and vulva.
Causes for flashes and floaters. Flashes and floaters can be caused by: Detachment of the jelly-like âvitreousâ from the retina. Detachement of the innermost light-sensitive layer of the eye is the most common cause of floaters and flashes. Posterior vitreous detachment occurs naturally as we get older, typically around ages 55 to 60.