Pseudofolliculitis causes painful bumps and dark spots from shaving, especially in people with curly hair, and can be treated by changing shaving habits and using specific topical treatments.
3 citations
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April 2017 in “Journal of Medical Science And clinical Research” PCOS often causes acne, dark skin patches, excess hair, and hair loss, linked to hormone levels and obesity.
2 citations
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May 1991 in “PubMed” Nevus comedonicus is a rare skin condition causing dark bumps, treatable with retinoic acid or surgery.
1 citations
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February 2025 in “Photodermatology Photoimmunology & Photomedicine” 830 nm LED light effectively treats and prevents skin redness and dark spots, while 590 nm LED light only helps prevent them.
1 citations
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September 2024 in “Journal of Oncology Pharmacy Practice” Hydroxyurea treatment unexpectedly restored hair color from gray to dark brown in an older woman.
1 citations
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January 2018 in “Acta dermato-venereologica” A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.
September 2023 in “Journal of the American Academy of Dermatology” Spanish speakers with limited English search most for "pigmentation/dark spots."
November 2019 in “Harper's Textbook of Pediatric Dermatology” Children with metabolic syndrome often have skin problems like dark patches, skin tags, stretch marks, infections, acne, and psoriasis, which are linked to obesity and insulin resistance.
October 2017 in “Journal of medical science and clinical research” Obese people are more likely to have certain skin conditions like dark patches, stretch marks, skin tags, and bumpy skin.
60 citations
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October 2014 in “Journal of the American Academy of Dermatology” Dermatologists play a key role in treating skin symptoms of PCOS like dark patches, excess hair, acne, and hair loss.
7 citations
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May 1988 in “International Journal of Dermatology” The patient's hair has unique structural differences with alternating bright and dark bands.
2 citations
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May 2023 in “Photobiomodulation, photomedicine, and laser surgery” Light therapy is effective and safe for treating skin color disorders like vitiligo and dark spots.
1 citations
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August 1998 in “Pediatrics in review” Understanding cultural practices and skin reactions is crucial for diagnosing and treating skin conditions in children with dark skin.
November 2024 in “Majalah Farmasetika” The natural hair dye gel with 12% Eleutherine bulbosa extract effectively colors bleached hair dark brown and is stable and non-irritating.
12 citations
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January 2011 in “Current problems in dermatology” Lasers and IPL are the most efficient for short-term hair removal, especially for people with dark hair and light skin, but require multiple sessions for longer-lasting effects.
1 citations
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October 2023 in “Skin Research and Technology” Hair sunscreens were less effective than expected, especially for dark hair.
June 2018 in “Journal of evolution of medical and dental sciences” Skin problems like excessive hair growth, acne, and dark skin patches can be signs of Polycystic Ovarian Disease, which may also be linked to family history and a risk for diabetes.
10 citations
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November 2014 in “Journal of Dermatological Treatment” Polyphenols may help treat skin conditions like warts, hair loss, acne, and dark spots, but more research is needed.
6 citations
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January 2001 in “Cambridge University Press eBooks” PCOS can cause excess hair growth, oily skin, hair loss, acne, and dark skin patches.
1 citations
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March 2020 in “International journal of reproduction, contraception, obstetrics and gynecology” The study concluded that the most common skin problems in women with PCOS are excess hair, acne, oily skin, hair loss, dark skin patches, and skin tags.
1 citations
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February 2014 in “Italian journal of medicine” An 80-year-old woman with Cronkhite-Canada syndrome had multiple polyps and symptoms like diarrhea, hair loss, nail issues, and dark skin.
December 2025 in “BENTHAM SCIENCE PUBLISHERS eBooks” PCOS often causes skin issues like excess hair, acne, hair thinning, and dark patches due to hormone imbalances and insulin resistance.
January 2024 in “Advances in Cosmetic Surgery” Robotic hair restoration is a safe, efficient alternative to manual hair transplant, best for men with dark, thick hair and skin, requiring sufficient donor hair and postoperative care.
January 2023 in “The Egyptian Journal of Hospital Medicine” Platelet-Rich Plasma (PRP) is a promising new treatment for skin strain scars, with no risk of dark spots or infection.
January 2023 in “Skin appendage disorders” Laser treatment for hair loss works equally well on different skin types, but more research is needed for very dark skin.
November 2020 in “ALEXMED ePosters (Online)” People with PCOS often have skin problems like excessive hair growth, hair loss, acne, and dark patches, which are linked to hormonal and metabolic imbalances.
July 2020 in “IP International Journal of Maxillofacial Imaging/International journal of maxillofacial imaging/IP International journal of maxillofacial imaging” Mesotherapy might be a good and safe way to treat hair loss, refresh skin, and reduce dark spots, with quick treatment times.
January 2020 in “Open Journal of Obstetrics and Gynecology” All women with Polycystic Ovary Syndrome (PCOS) in a study had at least one skin disorder, with the most common being excessive hair growth, acne, dark skin patches, hair loss, and oily skin.
November 2025 in “Veterinary and Animal Science” Camel hair structure, not color, helps camels stay cool in the desert.
18 citations
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July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.