If you have gynecological inflammation, such as vaginitis, vulvodynia, etc., long-term stimulation of the vulva can also cause local darkening, you need to go to the hospital for examination and choose the appropriate treatment according to the specific situation. If the body hormone level changes, such as hyperadrenalism, insulin resistance, etc. need to adjust the endocrine abnormalities treatment. Pigmentation can be improved by topical rubbing of vitamin E, vitamin C, etc. The actual fact is that you can use anti-inflammatory suppositories and gynecological lotions to wash your vulva, pay attention to your vulva hygiene, it is advisable to wash your vulva with warm water, it is best not to stimulate the local skin often, if it is itchy you can not scratch, you can externally rub Furfuryl and other anti-itch drugs. Change your underwear regularly, wear cotton underwear, and avoid having sex too often to avoid aggravating pigmentation.