erythro-, erythr-, ereuth-

(Greek: the color red, ruddy; blushing)

anerythroplasia (s) (noun), anerythroplasias (pl)
1. A condition in which there is no formation of red blood cells: More specifically, anerythroplasia is the absence of red blood cell formation in the bone marrow.
2. Etymology: from an-, "not" + erythros, "red" + plasis, "a molding" or "formed".
"Spider fingers" or a physical condition in which the fingers are long, slender, and curved, resembling a spider's legs.

Long, slender fingers can be normal and not associated with any medical problems; however, in some cases, the tendency to develop spider fingers can indicate an underlying disease.

ereuthophobia, erythrophobia, erytophobia, (s) (noun) (no plural)
1. An irrational and persistent dread of blushing: Passion, anger, embarrassment, or romantic situations can cause the reddening of an individual's face, and the constant fear of this can lead to a person being afflicted with erythrophobia.
2. Hypersensitivity to the color red: This phobia can be caused as a conditioned response to the tint of crimson or scarlet, often accompanied by an abnormal panic of blood or hematophobia.
Red screams danger or at the very least inconvenience and annoyance. It's no wonder we do our best to avoid it. Red ink is a sign of trouble in business. Red light stops us in our tracks. Who wants to be caught red-handed?
—Anu Garg
erythralgia, rodonalgia (s) (noun) (no pl)
In pathology, a mottled reddening of the skin, usually accompanied by throbbing pain: Erythralgia is a skin disorder characterized by a painful burning sensation, raised skin temperature, and redness, generally of the lower limbs.

Erythralgia exhibits a redness of the skin, especially of the extremities, with burning pain, and increased skin temperature.

erythrism, erythristic
1. Abnormal or unusual redness or red pigmentation, as of plumage or hair.
2. Redness of the hair and beard with a ruddy complexion.
A primary deficiency of erythroblasts in bone marrow, seen in aplastic anemia.
erythrocyanosis (s) (noun) (no plural)
A condition of slight swelling and a blue or pink tint of the skin of the lower limbs of young girls and women following a prolonged exposure to cold: Susan and Jill noticed a discolouration of their legs after walking so long along the river in the snow, so they returned quickly back to the warmth of their home and found out on the internet that the name of the purple hue was erythrocyanosis!
erythrocytopenia, erythropenia
1. Deficiency in the number of red blood cells.
2. Decreased numbers of erythrocytes (red blood cells) in the blood, which occurs in some forms of anemia or a deficiency of red blood cells.