There is black under the skin of the armpit.
Jun 05, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
The term "luo zhi wo" generally refers to the armpit. Black discoloration under the skin of the armpit may be caused by factors such as hyperpigmentation, subcutaneous bleeding, or acanthosis nigricans, and can be managed with lifestyle modifications and medication. Additionally, it might also result from conditions like pityriasis versicolor, adrenal cortical insufficiency, or neurodermatitis. Patients are advised to visit a正规 hospital to determine the exact cause and receive timely treatment.
The armpit generally refers to the axilla. Dark discoloration under the skin of the axilla may be caused by factors such as hyperpigmentation, subcutaneous hemorrhage, or acanthosis nigricans, and can be managed with lifestyle adjustments and medical treatment. Specific causes are analyzed as follows:
1. Hyperpigmentation
This may occur due to long-term friction leading to increased pigment deposition, resulting in the aforementioned symptoms. If no other symptoms are present, special treatment is usually unnecessary. Maintaining good hygiene, including keeping the axilla clean and dry, is sufficient.
2. Subcutaneous Hemorrhage
In some patients, local bruising may result from trauma or pressure to the axilla. Occasional symptoms like these typically do not require specific treatment but can be relieved with local cold or warm compresses.
3. Acanthosis Nigricans
Obesity commonly leads to darkened, thickened skin in areas such as the armpits or skin folds. It may also be associated with endocrine or metabolic abnormalities or dysfunction of melanocytes, resulting in dark patches under the arms. Topical coal tar sulfate ointment may be used for treatment.
In addition, similar symptoms may also be caused by conditions such as pityriasis versicolor, adrenal cortical insufficiency, or neurodermatitis. Patients are advised to seek evaluation at a正规 hospital to determine the exact cause and receive timely treatment.
