PRURITUS ( ITCHING )
Definition:
Pruritus may be defined as the unpleasant sensation which produces the desire to scratch. It may be localized or generalized.
Causes of pruritus:
A. Dermatological disorders.
B. Systemic diseases.
C. Psychogenic pruritus.
D. Iatrogenic pruritus.
E. Idiopathic.
A. Dermatological pruritus.
Ü Scabies
Ü Pediculosis
Ü Insect bites
Ü Eczema
Ü Urticaria
Ü Prickly heat
Ü Lichen planus
Ü Dermatitis herpetiformis
Ü Dermatophytosis
1. ENDOCRINE -- diabetes mellitus, hyperthyroidism, hypothyroidism.
2. HEPATIC -- intrahepatic and extrahepatic biliary obstruction ( cholestasis).
3. RENAL --chronic renal insufficiency.
4. HEMATOLOGICAL – iron deficiency anemia, polycythemia, leukemia, mycosis fungoides.
5. INTESTINAL PARASITES – Infestation with hookworm, roundworm, pinworm.
6. COLLAGEN VASCULAR DIASES - SLE.
7. NEUROLOGICAL – multiple sclerosis, brain tumor.
8. PREGNANCY.
B. Systemic diseases:
1. ENDOCRINE -- diabetes mellitus, hyperthyroidism, hypothyroidism.
2. HEPATIC -- intrahepatic and extrahepatic biliary obstruction ( cholestasis).
3. RENAL --chronic renal insufficiency.
B. Systemic diseases:
4. HEMATOLOGICAL – iron deficiency anemia, polycythemia, leukemia, mycosis fungoides.
5. INTESTINAL PARASITES – Infestation with hookworm, roundworm, pinworm.
6. COLLAGEN VASCULAR DIASES - SLE.
7. NEUROLOGICAL – multiple sclerosis, brain tumor.
8. PREGNANCY.
C. Psychogenic pruritus:
Parasitophobia, LSC, anorexia nervosa.
D. Iatrogenic pruritus:
Opium alkaloids, CNS stimulants, antidepressants.
E. Idiopathic:
Itching more than 2 to 6 weeks with no determined cause.
semen analysis:http://semenanalysis.blogspot.com/
semen analysis:http://semenanalysis.blogspot.com/
