Freckles, Lentigines and Sun Spots: Causes and Treatment

Freckles are small, light brown spots that get darker with sun and fade when sun exposure drops, whereas lentigines, including sun spots (solar lentigines), are flat brown spots that stay the same all year and become more common with age and sun. Both are caused or triggered by ultraviolet light, so daily sun protection is the foundation of prevention, and a dermatologist can lighten or remove them safely once a spot is confirmed to be harmless.

In India, these spots are often lumped together as pigmentation, along with melasma, tanning and post acne marks. Getting the right label matters, because the treatment and the outlook are different for each.

What are freckles?

Freckles, medically called ephelides, are tiny, flat, light brown or tan spots. Key features:

• Appear in childhood, often on the nose, cheeks, shoulders and arms
• Darken in summer or after sun and become lighter when sun exposure is lower
• Run in families and are more common in very fair skin
• Contain extra pigment but not extra pigment cells

They are less common in brown skin than in very fair skin, but they do occur in some Indian families.

What are lentigines and sun spots?

A lentigo (plural lentigines) is a flat brown spot that contains an increased number of pigment cells. Unlike a freckle, it does not fade when sun exposure falls. DermNet describes several types:

• Solar lentigo, also called a sun spot, age spot or liver spot, on sun exposed skin such as the face, back of the hands, forearms and shoulders. These often appear from middle age and increase with sun exposure
• Lentigo simplex, which can appear in childhood anywhere on the body
• Ink spot lentigo, a very dark spot that can follow sunburn
• Lentigines after phototherapy or tanning beds
• Melanotic macules on the lips or genitals

In India, solar lentigines are common in people who have spent years outdoors, such as farmers, drivers, traffic police, delivery workers and those who commute on two wheelers.

How do these spots compare?

Feature	Freckles	Solar lentigines (sun spots)	Melasma
Typical age	Childhood	From middle age	Women 20s to 40s
Size	Very small	Small to larger	Large patches
Seasonal change	Fade with less sun	Stay year round	Worse with sun and heat
Common sites	Nose, cheeks, arms	Face, hands, forearms	Cheeks, forehead, upper lip
Main triggers	Sun, genetics	Long term sun	Sun, hormones, heat

Other spots can look similar:

• Melasma, symmetrical brown patches often linked to hormones. See our melasma guide
• Post inflammatory hyperpigmentation after acne, eczema or injury
• Seborrhoeic keratoses, raised, stuck on brown spots that become more common with age. Read our article on seborrheic keratosis and age spots
• Dermatosis papulosa nigra, small dark bumps on the cheeks common in Indian skin
• Moles and, rarely, melanoma

Why does the sun cause these spots?

Ultraviolet light stimulates pigment cells to make more melanin to protect the skin. Over years, repeated exposure can lead to localised clusters of pigment cells and permanent spots. The World Health Organization notes that UV exposure contributes to skin ageing and skin cancers. India’s strong sun for much of the year means that cumulative exposure can be high, even on cloudy or monsoon days.

How can I prevent new spots?

Prevention works for all skin types:

1. Use a broad spectrum sunscreen every morning on the face, neck, ears and backs of hands, and reapply when outdoors for long periods. Our sunscreen guide for India explains SPF and PA ratings
2. Wear protective clothing, such as full sleeves, a wide brimmed hat, a cap or dupatta, and sunglasses
3. Seek shade during the strongest sun, roughly late morning to mid afternoon
4. Protect your hands while driving or riding, as the backs of hands get a lot of sun
5. Avoid tanning beds

What treatments can a dermatologist offer?

After confirming the diagnosis, your dermatologist may consider:

• Prescription lightening creams, used for a limited period under supervision
• Topical retinoids to gradually lighten spots and improve texture. Our retinol and tretinoin guide explains how to start
• Chemical peels, chosen carefully for brown skin
• Cryotherapy, freezing individual spots with liquid nitrogen. On brown skin this can leave a light or dark mark, so it is used selectively
• Lasers and intense pulsed light, which can target pigment. Settings must be adjusted for darker skin types to reduce the risk of burns and new pigmentation

Important points about treatment:

• Results vary. Some spots lighten fully, others only partly
• New spots can appear with further sun exposure, so sun protection must continue
• Brown skin is prone to post inflammatory hyperpigmentation, so aggressive treatments can backfire. The AAD advises people with darker skin to treat dark spots gently and under dermatologist guidance

Do home remedies help?

Lemon juice, raw potato, tomato, baking soda and turmeric pastes are widely used. There is little good evidence that they fade lentigines, and acidic or abrasive remedies can irritate the skin and cause more pigmentation. Bleaching or fairness creams of unknown composition, especially those containing steroids, should be avoided. Our article on topical steroid misuse and fairness creams explains the risks.

When is a brown spot a warning sign?

Most freckles and lentigines are harmless. Melanoma is less common in Indian skin, but it does occur, and some forms appear on the palms, soles, nails and mucous membranes. Use the ABCDE signs as a guide:

• Asymmetry, where one half does not match the other
• Border that is irregular or blurred
• Colour that is uneven, with several shades
• Diameter that is larger than a pencil eraser, or growing
• Evolving, meaning changing in size, shape or colour

Our guide to skin cancer signs in darker skin covers what to look for.

Are freckles and sun spots common in children?

Freckles can appear in young children, especially those with fairer skin who spend time in the sun. Children’s skin also needs sun protection:

• Encourage shade, caps and light full sleeved clothing during outdoor play
• Use a sunscreen suitable for children on exposed skin, after checking it suits your child’s skin
• Avoid long outdoor play in the strongest midday sun where possible

Solar lentigines are uncommon in children. A child with many brown spots, or spots on unusual sites such as the lips, should be seen by a doctor, because some rare conditions cause multiple lentigines.

When to see a dermatologist

See a dermatologist if:

• A spot is new, growing, changing colour or shape, or has an irregular border
• A spot itches, bleeds, crusts or does not heal
• You notice a dark streak in a nail or a new dark spot on the palm or sole
• You are not sure whether a patch is melasma, a lentigo or something else
• You want to discuss lightening or removal safely
• Home products are causing irritation or new dark marks

If you would like a calm, clear assessment of your spots, Dr. Maria offers online consultations where you can share close up and overall photos in daylight. Any spot that needs a closer look can then be planned for an in person examination.