Dark spots on the stomach are related to post-inflammatory hyperpigmentation, coffee spots and seborrheic keratosis.
1. Post-inflammatory hyperpigmentation: post-inflammatory hyperpigmentation is caused by acute inflammation or chronic inflammation of the skin, which is mainly due to the stimulation of melanin synthesis by epidermal melanocytes by inflammatory substances, and when the local melanin increases, it will lead to the phenomenon of dark spots on the stomach.
2. Coffee spots: most patients have coffee spots caused by abnormal pigmentation changes, which have no relationship with sun exposure. Café au lait is a kind of brown patch of skin with clear boundary and different sizes, shapes and colors. Therefore, those who have coffee spots on the stomach may have dark spots.
3. Seborrheic keratosis: the etiology is not clear, and it may have some relationship with skin aging. Patients’ lesions are characterized by light brown to black patches, or papules, plaques, with smooth or rough surface, and some patients may have other symptoms such as itching, pain, flaking, etc., so it may cause dark spots on the stomach.
It is recommended that people with black spots on the stomach should consult a doctor for examination and investigate the cause of the disease. Pay attention to skin care in daily life and try to wear loose and pure cotton clothes.