What causes underarm darkening?

I'm a 22 year old female. My underarms started to darken when I was 21. I'm not using any harsh deodorant so what could have caused the underarm darkening?

3 answers to “What causes underarm darkening?”

A: Underarm darkening

Bryan K. Chen, MD

I hesitate to give someone a diagnosis without actually performing an examination.  I can think of several reasons for why someone's underarms would be dark, including a skin condition called acanthosis nigricans, hormone-associated hyperpigmentation, medication-related pigmentation and post-inflammatory... more

A: Underarm Darkening - Hyperpigmentation

Hratch Karamanoukian, MD

There are many causes for this such as: 1. excessive sweating 2. shaving with irritation, abrasion, hemosiderin deposition, etc 3. chemicals in antiperspirants such as the alcohols We recommend treatment for the underarm hyperhidrosis (Botox) or the other techniques, and perhaps laser hair removal to avoid the... more

A: Skin irritation, friction causes underarm darkening

Hisham Seify, MD, PhD

Mechanical friction and skin irritation will make your underarm skin darker. Proper skin care, proper deoderant use, and in some cases hydroquinones, might help with this condition.

Post your question
Post your question
IMPORTANT: As noted in our Terms of Service, the information found on RealSelf.com, including that provided by professionals in the Questions & Answers area, is a general educational aid. The Questions and Answers contain opinions and views created by community members. RealSelf.com is not responsible for the accuracy of any information posted by community members. Do not rely on this information as a substitute for personal medical or healthcare advice, or for diagnosis or treatment purposes.