Xeroderma pigmentosum is a rare, autosomal recessive disease caused by defect in DNA repair. Patients with xeroderma pigmentosum often have cutaneous and ocular sun sensitivity, pigmented freckles, multiple skin and eye ...

Xerostomia is the subjective sensation of dry mouth, which is often (but not always) associated with hypofunction of the salivary glands.The term is derived from the Greek words ξηρός (xeros) meaning "dry" and στόμα ...

is excessive worrying about your health, to the point where it causes great distress and affects your everyday life. Some people with health anxiety have a medical condition, which they worry about excessively. Others ...