It is possible that the skin is getting darker and darker in relation to excessive sun exposure, medications, melanosis, acanthosis nigricans and other factors. Patients need to go to the hospital in time, under the guidance of the doctor to clarify the cause.
1. Excessive sun exposure: When patients are exposed to excessive sunlight, ultraviolet light will stimulate the proliferation and activation of human epidermal melanocytes. Therefore, excessive sun exposure will lead to darker and darker skin symptoms.
2. Drugs: long-term use of cisplatin and other cytotoxic drugs, levofloxacin and other antibiotics, chlorpromazine and other sedative-hypnotic drugs, may cause local or widespread darkening and blackening of the skin.
3. Melanosis: Melanosis, also known as Ryle’s melanosis, is a manifestation of contact dermatitis, and patients typically show a grayish-purple grid-like pigmentation on damaged skin, which leads to the symptom of increasingly dark skin.
4. Acanthosis nigricans: Acanthosis nigricans is a skin disease characterized by downy or papillary hyperplasia, hyperkeratosis, and hyperpigmentation of the skin, which is related to heredity, obesity, and diabetes, etc. It can appear as a deepening of the skin color, which is grayish, brownish, or dark brown.
Patients whose skin is getting darker and darker need to go to the hospital in time and under the guidance of the doctor for regular treatment.