Seborrheic dermatitis is a skin condition that may cause symptoms like patches of skin that are lighter than the surrounding areas (hypopigmentation) and curved lesions in people with dark skin.

Seborrheic keratoses (SKs) are the most common benign tumor in older individuals. It is very uncommon to see the tumor occur before age 30 years. SKs have a variety of clinical appearances and develop ...

Treatment for seborrheic keratosis is usually unnecessary. However, a person may choose to treat it with cryotherapy, shave excision, laser therapy, topical medications, or electrodesiccation with or ...

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Medically reviewed by Susan Bard, MD Key Takeaways Red spots on the scalp can be caused by infections, allergic reactions, or ...