Category 1: Scalp Health Issues

  • Dandruff
  • Seborrheic dermatitis
  • Psoriasis
  • Folliculitis
  • Alopecia areata
  • Tinea capitis
  • Scalp acne
  • Scalp ringworm
  • Scalp eczema
  • Scalp folliculitis
  • Scarring alopecia
  • Telogen effluvium

 

Category 2: Hair Structure Issues

  • Split ends
  • Hair breakage
  • Dry and brittle hair
  • Frizzy hair
  • Flyaway hair
  • Hair porosity
  • Heat damage
  • Chemical damage
  • Sun damage
  • Environmental damage
  • Over-processed hair
  • Over-styling hair

 

Category 3: Hair Growth and Hair Loss Issues

  • Androgenic alopecia
  • Telogen effluvium
  • Anagen effluvium
  • Alopecia totalis
  • Alopecia universalis
  • Trichotillomania
  • Traction alopecia
  • Nutritional deficiencies
  • Hormonal imbalances
  • Medication side effects
  • Stress-induced hair loss
  • Radiation therapy-induced hair loss

 

Category 4: Hair Color Issues

  • Premature graying
  • Hair color fading
  • Hair dye allergy
  • Uneven hair color
  • Over-bleaching

 

Category 5: Hair Care Issues

  • Wrong shampoo and conditioner
  • Hard water and mineral buildup
  • Wrong hairbrush
  • Over-brushing
  • Over-washing
  • Over-conditioning
  • Wrong styling products
  • Overuse of heat styling tools
  • Wrong hair ties
  • Incorrect hair drying techniques

 

Conclusion:

Maintaining healthy hair is essential, and understanding the different hair health issues is the first step in preventing or addressing them. We’ve outlined all possible hair health issues, including the more obscure conditions, and grouped them into logical categories to help you navigate the information easily. Use this guide as a reference to identify and treat any hair health issues you may encounter.

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IAT-Certified Clinical Trichologist

Clare Devereux

Clare is the founding clinical trichologist at Hair Health Essentials, practising in Dublin and London. With over a decade of clinical trichology experience underpinned by a lifetime in professional hair and scalp care, she specialises in personalised diagnostics — from trichoscopy and blood biomarker analysis to genetic testing — to identify what’s really happening with your hair and scalp.

Clinics: Blackrock, Dublin · Eden One, Dublin · Harley Street, London

Hair Health Essentials provides specialist trichological guidance. This content is for informational purposes and does not constitute medical advice. If you have concerns about your health, please consult your GP or medical practitioner.