I have dark patches on my mouth, knuckles, and knees. Why?

Hello,

Welcome to icliniq.com.

I understand your concern.

Based on your given description, you are most likely having acanthosis nigricans or just hyperpigmentation, which is common on sun-exposed sites or areas that rub most often. In either case, the treatment for pigmentation is the same. For acanthosis, please get your haemoglobin A1C (HbA1c) blood test done, as it is linked to early diabetes and obesity.

Your weight according to height is not much, but I would now suggest shedding a few pounds. The ideal weight is between 55 to 60 for you. Regarding treatment options, there are topical and laser options for this issue.

I am giving you topical management.

• For body pigmentation, use Glycolic acid 10% cream mixed with Magnesium ascorbyl phosphate 5% cream in equal parts and apply at bedtime on affected areas.

• For the face, use Azelaic acid 10% cream under the cover of a moisturiser on alternate nights. Avoid Glycolic acid on the face, as it is too strong for the face.

Also, use sunblock with a sun protection factor (SPF) 50 in the morning on the body to avoid further pigmentation. Do this for one month, and you will notice improvement.

If you opt for laser treatment, consider a carbon dioxide (CO2) laser for pigmentation, which typically requires monthly sessions. With this type of laser, you can expect to see results in two to four sessions, depending on the laser available in your area.

I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.

Thank you.