Sun spots in men can be caused by solar dermatitis, a bright red red spot that appears on the sunburned area and gradually darkens over time. It is recommended to take general treatment, medication and other ways to improve. 1. General treatment: male patients with solar dermatitis should do a good job of sun protection, to avoid the lesions again sun exposure, otherwise it may cause infection. It is recommended to drink more water to avoid water loss. 2. Medication: It is recommended that patients externally use compound menthol ointment, compound indomethacin tincture and glycerite lotion and other drugs, which can be anti-inflammatory, anti-itching, and is conducive to the improvement of the symptoms of skin lesions. There are many reasons leading to men’s sun spots, it is recommended that patients go to regular hospitals and cooperate with doctors for standardized treatment.