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.
Vaginitis may be caused by bacteria, yeast, or other organisms. Bath products, douches, and spermicides also can irritate the vagina and cause itching and discomfort. The three most common types of vaginitis and their causes are:1  Yeast infection.aginitis may be caused by bacteria, yeast, or other organisms. Bath products, douches, and spermicides also can irritate the vagina and cause itching and discomfort. The three most common types of vaginitis and their causes are: