A consistent inability to sustain an erection sufficient for sexual intercourse. Commonly known as impotence. Medically, the term erectile dysfunction is used to properly differentiate this form of impotence from other problems that interfere with sexual intercourse, such as disease, injury, drug side effects, or a disorder that impairs the nerve supply or the blood flow to the penis. Other forms of impotence include lack of sexual desire and problems with ejaculation and orgasm. Erectile dysfunction is treatable in all age groups, and treatment includes using medication (notably Viagra) and penile implants. Abbreviated ED.
Dysgraphia: A specific developmental disability that affects a person’s handwriting ability. Problems may include fine-motor-muscle control of the hands and/or processing difficulties. Sometimes occupational ‘therapy is helpful for those with dysgraphia. Most successful students with dysgraphia that does not respond to occupational therapy or extra writing help use a typewriter, computer, or verbal communication.
- Dyshidrotic eczema
Irritation of the skin on the palms of hands and soles of the feet characterized by clear, deep blisters that itch and burn.
- Dyskeratosis congenita
Dyskeratosis congenita: An inherited cause of bone-marrow failure, dyskeratosis congenita is a syndrome characterized by abnormal excess skin pigmentation, abnormal or absent nails, and mucosal leukoplakia (white premalignant areas on the lips and conjunctiva of the eyes and in the mouth, anus, and urethra). More than 80% of patients with dyskeratosis congenita develop bone-marrow failure […]
Dyskinesia: The presence of involuntary movements, such as the choreaform movements seen in some cases of rheumatic fever or the characteristic movements of tardive dyskinesia. Some forms of dyskinesia are side effects of certain medications, particularly L-dopa and, in the case of tardive dyskinesia, antipsychotic drugs.
A specific developmental disability that alters the way the brain processes written material. Because dyslexia is due to a defect in the brain’s processing of graphic symbols, it is thought of primarily as a learning disability. The effects of dyslexia vary from person to person. The only common trait among people with dyslexia is that […]