This is what happens if you don’t wash your hair for too many days

The science of unwashed hair

Accumulation of Sebum and Dirt

Your scalp produces natural oils called sebum, which moisturise and protect the skin and hair. However, when you don’t wash your hair for days, these oils mix with dirt, dead skin cells, and environmental pollutants. This can lead to a buildup that clogs hair follicles and encourages microbial growth, including bacteria and fungi.

Demodex Mites Overgrowth

Demodex mites, microscopic organisms naturally found on the skin, may multiply if scalp hygiene is neglected. While typically harmless, an overgrowth can result in irritation, redness, and folliculitis (inflammation of the hair follicles). In severe cases, prolonged imbalance could even contribute to hair thinning or loss.

Not washing hair often can contribute to hair loss. (File Photo/Freepik)

Here are some risks of prolonged unwashed hair, according to Dr Khare.

1. Clogged Hair Follicles
   Sebum and debris can block hair follicles, disrupting healthy hair growth and contributing to scalp acne.
2. Unpleasant Odour and Discomfort
   Excessive oil and microbial activity often result in an unpleasant smell, leaving the scalp feeling greasy and uncomfortable.
3. Infections
   Unwashed hair increases the risk of scalp conditions like seborrheic dermatitis or fungal infections. These may require dermatological intervention to manage.
4. Secondary Infections
   Scratching an itchy scalp exacerbated by poor hygiene can damage the skin barrier, making it vulnerable to secondary bacterial infections.

Tips for maintaining scalp hygiene

• Regular Washing
  Adapt your washing frequency to your scalp type. For oily scalps, washing every other day may be necessary, while dry scalps might need less frequent washing.
• Gentle Shampoo
  Choose shampoos free from harsh chemicals that can strip natural oils, causing the scalp to overcompensate by producing excess oil.
• Exfoliation
  Use a scalp scrub occasionally to remove buildup and keep hair follicles clean.
• Avoid Overwashing
  Overwashing can lead to dryness and disrupt your scalp’s natural oil balance, said Dr Khare. A good rule is to find the sweet spot that keeps your scalp comfortable without drying it out.

If you experience persistent scalp issues, it’s important to consult a dermatologist for personalised care.