Plaque Psoriasis. Plaque psoriasis is the most common form of the disease and appears as raised, red patches covered with a silvery white buildup of dead skin cells. These patches or plaques most often show up on the scalp, knees, elbows and lower back.They are often itchy and painful, and they can crack and bleed.hile scientists do not know what exactly causes psoriasis, we do know that the immune system and genetics play major roles in its development. Usually, something triggers psoriasis to flare. The skin cells in people with psoriasis grow at an abnormally fast rate, which causes the buildup of psoriasis lesions.
The average cervix length is 4 to 5 cm, and it is expected to shorten as you get further along into your pregnancy. One study found that at 24 weeks gestation, the average cervix length is 3.5 cm. When cervical length is less than 2.2 cm, women face a 20 percent probability of preterm delivery. Another study found that when the cervical length measures 1.5 cm or less, the risk of spontaneous preterm birth is almost 50 percent.
Dilation of the cervix is measured in centimeters. During labor, your cervix will stretch from 0cm to a fully dilated 10 cm. During a vaginal exam, cervix dilation is measured by how many finger widths fit into the opening of the cervix. If the tip of one finger fits, the cervix is 1 cm dilated. If 2 finger tips fit, that signifies 2 cm. The distance the two fingers can stretch wide indicates further dilation. Does It Mean I'm Going Into Labor? Nope, sorry.