Hyperpigmentation

3 min read·Last updated: 2026-02-08·Reviewed by Dr. Julia Tzu, MD, FAAD, FACMS

At a Glance

Hyperpigmentation is a common skin condition where patches of skin become darker than the surrounding skin due to excess melanin production. It can affect people of any skin type and appear anywhere on the body. Common forms include sun spots (solar lentigines) from UV exposure, post-inflammatory hyperpigmentation (PIH) from skin injury or inflammation, and melasma from hormonal changes. While usually harmless, hyperpigmentation can be cosmetically concerning. Treatment depends on the underlying cause and may include topical lightening agents, chemical peels, and laser therapy.

Hyperpigmentation occurs when skin cells produce excess melanin, causing darker patches[1]
Post-inflammatory hyperpigmentation commonly accompanies acne, especially in darker skin tones[2]
Most dark spots will fade over time after the underlying cause is treated, though it may take many months[1]
Treatments can take several months to a year to show noticeable improvement[2]

Symptoms

Patches or spots darker than surrounding skin
Flat, darkened areas of various sizes
Brown, tan, or gray-brown discoloration
Spots that may enlarge over time
Clusters of freckle-like spots
Darkening of areas where skin was injured or inflamed

When to Seek Professional Care

Dark spots that concern you cosmetically
New or changing pigmented spots
Dark areas that developed after skin injury or acne
Desire for treatment options
Uncertainty about whether spots are harmless or need evaluation

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Causes

Sun exposure (solar lentigines/age spots)
Skin injury or inflammation (post-inflammatory hyperpigmentation)
Hormonal changes (melasma)
Acne scarring
Medications causing photosensitivity
Adrenal disorders
Vitamin B12 or folic acid deficiency
Genetic factors

How We Can Help

We offer a service to help manage this condition: Laser Treatment.

Prognosis

Many dark spots fade over time once the cause is addressed
Sun-related spots may not fade without treatment
Post-inflammatory hyperpigmentation often improves but can take months to years
Treatment can significantly lighten most hyperpigmentation
Ongoing sun protection prevents new spots and recurrence
Some stubborn pigmentation may require combination treatments

Frequently Asked Questions

What is hyperpigmentation?

Hyperpigmentation is a common skin condition where patches become darker than surrounding skin due to excess melanin production. Common types include sun spots (age spots), post-inflammatory hyperpigmentation from acne or injury, and melasma from hormones. While usually harmless, it can be cosmetically concerning.

What causes dark spots on the skin?

Dark spots develop when skin cells produce excess melanin. Common causes include sun exposure (creating age spots), skin injury or inflammation like acne (post- inflammatory hyperpigmentation), hormonal changes (melasma), certain medications, and genetic factors. The cause determines the best treatment approach.

When should I see a dermatologist about dark spots?

See a dermatologist if dark spots concern you cosmetically, you notice new or changing pigmented areas, spots developed after acne or skin injury, or you want professional treatment options. A dermatologist can determine the type of hyperpigmentation and recommend appropriate treatments.

How is hyperpigmentation treated?

Treatment starts with daily sunscreen to prevent worsening. Options include topical lightening agents (hydroquinone, vitamin C, azelaic acid, retinoids), chemical peels, and laser treatments. Treatment may take months to show results. The underlying cause must also be addressed.

Will dark spots fade on their own?

Some dark spots, especially post-inflammatory hyperpigmentation from acne or injury, may fade over time once the cause is treated. However, this can take months to years. Sun spots often don't fade without treatment. Consistent sun protection helps prevent new spots and speeds fading.

How can I prevent dark spots from forming?

Prevention centers on sun protection: use broad-spectrum SPF 30+ sunscreen daily, reapply every two hours outdoors, wear protective clothing and hats, and avoid tanning beds. Treating underlying conditions like rashes or acne promptly helps prevent post-inflammatory hyperpigmentation. Avoid injuring and picking at skin.

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