Melasma is a skin disease, so you need to register with the Department of Dermatology to see melasma; you can register in advance and bring the relevant documents before the consultation. Chloasma refers to yellowish-brown pigmentation spots on the face, which are more common in young and middle-aged women, mostly related to endocrine and sunlight factors. It does not affect the health of the body, but it will affect the beauty of the face. If melasma persists and does not subside, and gradually increases, expands and becomes deeper, you should go to the dermatology department in time for consultation. Before consultation, you can make an appointment in advance and bring your medical insurance card, ID card and other documents; if you have had a recent experience of consultation, you can bring the examination report and laboratory test. If you have chloasma, you should pay attention to sun protection, and carry out standardized treatment under the guidance of doctors, avoiding private abuse of drugs, prescriptions, etc., which may not necessarily play a therapeutic role and will delay the treatment of the condition.