An itchy scalp is common and can have many different causes. Some of the main ones include:
- Dandruff (Seborrheic dermatitis) – The most common cause. It leads to flaky, oily, or dry skin and persistent itching.
- Dry scalp – Cold weather, harsh shampoos, or frequent washing can strip natural oils, making the scalp dry and itchy.
- Product buildup or allergic reactions – Hair dyes, shampoos, conditioners, and styling products can irritate the scalp or trigger an allergic reaction.
- Psoriasis – An autoimmune condition that causes thick, silvery scales and red, itchy patches on the scalp.
- Eczema (Atopic dermatitis) – Can affect the scalp, causing redness, dryness, and intense itching.
- Fungal infections (such as ringworm of the scalp) – These can cause itching, scaling, hair loss in patches, and sometimes swollen lymph nodes.
- Head lice – Tiny parasites that cause intense itching, especially behind the ears and at the back of the neck.
- Stress – Emotional stress can worsen existing scalp conditions or make itching more noticeable.
How to relieve an itchy scalp
- Use a gentle, fragrance-free shampoo.
