Everyone Healthy Library
Skin Hyperpigmentation
Sign or symptom reference page from the Everyone Healthy database.
! Seek urgent medical care if warning signs appear
A symptom can have many possible causes. Some symptoms need urgent assessment, especially when they are severe, sudden or rapidly worsening.
Get urgent medical care now if there is any severe, sudden, rapidly worsening or worrying symptom, especially:
- chest pain, pressure or pain spreading to the arm, jaw or back
- trouble breathing, blue lips, severe wheeze or choking
- stroke-like symptoms such as face drooping, arm weakness or speech trouble
- collapse, fainting, seizure, confusion or extreme drowsiness
- severe bleeding, black stools, vomiting blood or major injury
- severe allergic reaction, swelling of the face/throat or widespread rash with breathing trouble
- severe abdominal pain, severe headache, stiff neck or sudden vision change
- signs of severe dehydration, sepsis, high fever with worsening illness, or symptoms in a baby/young child that concern you
Full information
Skin Hyperpigmentation
Skin hyperpigmentation refers to a darkening of the skin or nails. Hyperpigmentation is caused by an overproduction of the pigment melanin.
Symptom classification
Body areaEntire Body
Body areaSkin
Conditions linked to this sign/symptom
28- Acanthosis Nigricans
- Bacillary Angiomatosis
- Chloasma (Melasma)
- Chronic Venous Insufficiency
- Congenital Adrenal Hyperplasia
- Cutaneous Paraneoplastic Syndromes
- Discoid Lupus Erythematosus
- Erythrasma
- Ferroportin Disease
- Hepatoerythropoietic Porphyria
- Hypoaldosteronism
- Iron Toxicity
- Kaposis Sarcoma
- Lichen Simplex Chronicus
- Linchen Simplex Chronicus
- Lymphedema
- Medullary Cystic Kidney Disease Complex
- Moles
- Nevus Flammeus
- Pinta
- POEMS Syndrome
- Port Wine Stain
- Primary Biliary Cirrhosis
- Primary Hemochromatosis
- Senile Pupura
- Stasis Dermatitis
- Systemic Sclerosis
- Tinea Versicolor