An itchy scalp can result from several conditions, and symptoms such as flakes, bumps, rashes or hair loss may help identify the cause.
According to Cleveland Clinic, one of the most common causes is seborrheic dermatitis, which can trigger dandruff, itching and flaking.
Dry scalp, irritation or allergic reactions to hair dyes, shampoos and styling products can also cause itching.
Other common conditions include scalp eczema, which causes dry, inflamed and intensely itchy skin, and psoriasis, an autoimmune condition that can produce raised, scaly patches.
Head lice may cause intense itching, while scalp acne and folliculitis can lead to itchy or painful bumps.
Ringworm of the scalp, a fungal infection also known as tinea capitis, may cause itchy, scaly patches and hair loss.
Persistent itching, especially when accompanied by pain, rash or hair loss, should be assessed by a healthcare provider to determine the underlying cause.
