In formal poetry, rhyme scheme rhyme scheme and meter define different types of quatrain. 1  There are many types of quatrain, but the most common types include: 2  Ballad Stanza â Its rhyme scheme is abab with iambic tetrameter. 3  Envelope Stanza â Its rhyme scheme is abba with iambic tetrameter. 4  Goethe Stanza â Its rhyme scheme is abab but no meter.
The six most common types of vaginitis are: 1  Candida or yeast infections. 2  Bacterial vaginosis. 3  Trichomoniasis vaginitis.  Chlamydia 1  vaginitis. Viral vaginitis.  Non-infectious vaginitis.
Bacterial vaginosis (BV) is common and causes a vaginal discharge, often with a noticeable smell. BV is not a sexually transmitted infection. It is caused by an overgrowth of normal germs (bacteria) in the vagina.ther cases can be treated with antibiotic medication. BV is a common condition of the vagina caused by an overgrowth of various germs (bacteria). It is not just one simple infection caused by one type of germ (bacterium). The vagina normally has a mix of bacteria, but in BV the balance changes.