Treatment for Dark Underarms and Thighs

Skin folds experience rubbing, moisture and occlusion. Deodorants, shaving, tight clothing or a rash can irritate the surface; healing may leave darker colour called [Post-Inflammatory Hyperpigmentation](/conditions/post-inflammatory-hyperpigmentation/). A fold rash such as [Intertrigo](/conditions/intertrigo/) may cause soreness, redness, odour or moist scaling before colour persists.

The underarms and inner thighs may not respond in the same way. Skin tone, recent inflammation, hair-removal habits and the presence of thickened or velvety skin all affect the safest plan.

Keep folds dry, choose breathable clothing, reduce rubbing and stop any product that stings. Use gentle cleansing and avoid aggressive scrubbing, which can prolong irritation. Do not apply a strong pigment product to inflamed or broken skin.

After examination, a clinician may consider [Hydroquinone Treatment](/treatments/medical-dermatology/topical-hydroquinone-therapy/) for selected pigment, [Chemical Peel](/treatments/aesthetic-procedures/chemical-peel/) or [Laser Toning](/treatments/laser-and-energy/laser-toning/). [Laser Hair Removal](/treatments/laser-and-energy/laser-hair-removal/) may help reduce shaving-related irritation for suitable patients, but it is not a universal pigment treatment.

Arrange a dermatology visit if darkening spreads quickly, the skin becomes thick or velvety, or there is persistent itch, pain, cracking, discharge, odour or recurrent rash. Seek prompt care for rapidly worsening swelling, severe tenderness, fever or pus. Treating an active fold condition should come before cosmetic procedures.

Is my colour change linked to friction, shaving, [Intertrigo](/conditions/intertrigo/) or [Post-Inflammatory Hyperpigmentation](/conditions/post-inflammatory-hyperpigmentation/)? Which treatment suits my skin tone and current skin condition? What should I stop using, and how will you reduce the chance of irritation during treatment?