Blood, hematopoietic organs – immune system (D50-D90).
- Iron-deficiency anemia (anemia due to iron deficiency).
Endocrine, nutritional, and metabolic diseases (E00-E90).
- Andropause (male menopause)
- Dehydration (lack of fluid)
- Hypernatremia (excess sodium)
- Hypothyroidism (hypothyroidism) or latent hypothyroidism.
- Malnutrition
- Menopause (menopause of the woman; climacteric)
- Somatopause – decline in STH secretion (somatotropic hormone (STH), English “human growth hormone”: growth hormone) with consecutive STH deficiency in middle-aged and advanced adults.
- Underweight
Skin and subcutaneous tissue (L00-L99)
- Atopic eczema (neurodermatitis)
Genitourinary system (kidneys, urinary tract – reproductive organs) (N00-N99).
- Amenorrhea
- Primary amenorrhea: absence of menarche (first menstrual period).
- Secondary amenorrhea: no menstrual bleeding for > 90 days with an already established cycle.
Injury, poisoning, and certain other sequelae of external causes (S00-T98).
- Sick-building syndrome (SBS) – clinical picture from the field of occupational and environmental medicine; occurs as a reaction to pollution of enclosed spaces, but may also be due to psychological factors.
Medication
- See under “Causes”
Environmental pollution – intoxications (poisonings).
- Irritants (chemicals, solvents)
- Air conditioning (dry air)
- Overheated rooms
- Dry room climate
- Sun (frequent sunbathing)
- Winter (cold) – cold-dry climates; dry heating air (→ reduction of sebaceous gland secretion).
Further
- Cleaning agents containing alcohol
- Skin aging
