Doctor insights on:
What Could Cause Changes In Skin Pigmentation
Sun, hormones, meds: Most common causes of increased pigmentation are sun exposure, hormones (ie: pregnancy, fertility treatments, oral contraceptives, hormonal replacement therapy), and medications (ie: minocycline, tetracycline, doxycycline, sulfa drugs) or combination thereof. Certain diseases associated with hormonal imbalance such as addison's or cushing's can also cause excess pigment. ...Read moreSee 1 more doctor answer
Skin color comes from four different pigments present in our skin: 1. Melanin - tans or browns in our skin 2. Carotenes - yellows and oranges 3. Oxygenated hemoglobin (in the arteries) - red 4. Deoxygenated hemoglobin (in the veins) - blue skin color is the ...Read more
What would cause splotchy skin pigmentation changes on my chest, shoulders, and neck that pop up every summer ?
Tinea versicolor: This is a benign fungal infection. The fungus prevents even tanning that becomes more apparent upon getting sun exposure, particularly in the summer. You can treat it by applying a dandruff shampoo like Nizoral (ketoconazole) for 10 minutes before showering each day for 1-2 weeks. This will often eliminate the fungus and the skin color will then gradually even out upon additional tanning. ...Read more
Allergies: Dark pigmentation around the eyes is commonly caused by allergy, and may be due to repeated episodes of swelling as well as itching and eye rubbing. Broken lid vessels lead to pigmentation. Certain glaucoma eye drops are known for skin pigmentation, as is Latisse (bimatoprost) for eyelash growth (if it gets onto the skin). Decreased pigmentation can occur which cholesterol deposits (xanthelasma) and vitiligo. ...Read more
Probably not: I would suggest seeing a dermatologist for an evaluation. ...Read more
Yes: Although there is no safe way to permanently change your pigmentation, some topical treatments such as hydroquinone, can cause temporary lightening of skin pigment and spots. A little less effective but safer for long term use are products containing kojic acid and arbutin. These products work by suppressing melanin production. Medical grade products work better than over the counter creams. ...Read moreSee 1 more doctor answer
See below: If you mean the site of the needle puncture, it could be a hematoma, blood under skin, which can change colour. ...Read more
Many things: Acanthosis nigricans causes dark, velvety patches of skin on the neck & skin folds and since it can be associated with diabetes or other health issues, it is important to have it looked at. Many other causes exist: sun-exposure, post-inflammatory hyperpigmentation, tinea versicolor, other rashes & even retained dirt (terra firma-forme) are just a few! see a dermatologist. ...Read more
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