Signs Of Skin Disease

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There are eight basic signs of skin disease - hair loss, pigment changes, visible lumps, scratching, inflammation, scurfy scales, dry crusts, wet erosions and deeper ulcers. Most forms of skin disease cause a multiplicity of these clinical signs.

Hair Loss - Alopecia

Hair loss is usually local or partial, rarely complete and may occur either because hair is scratched or licked out, spontaneously falls out or fails to grow. Causes of hair loss include:

1 - Hormonal Causes Of Hair Loss

  • Underactive thyroid gland (Hypothyroidism)
  • Overactive adrenal gland (Hyperadrenocorticism or Cushing’s Syndrome)
  • Female hormone imbalance
  • Growth hormone alopecia or Alopecia X
  • Excessive cortisone

2 - Parasitic And Fungal Causes Of Hair Loss

  • Demodex mange
  • Ringworm

3 - Environmental Causes Of Hair Loss

  • Elbow pressure sores
  • Foreign body reactions - interdigital cysts
  • Harsh hair penetrations
  • Injection reactions
  • Post-clipping alopecia

4 - Inherited Causes Of Hair Loss

  • Acquired pattern alopecia
  • Colour-dilution alopecia (to blue or fawn-coloured hair)

5 - Behavioural Causes Of Hair Loss

  • Lick dermatitis or granuloma

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