Itchy feet in summer can be caused by mosquito bites, athlete’s foot, foot eczema and other factors. 1. Mosquito bites: in the summer mosquitoes are more, after the foot skin bites, it will lead to itching, accompanied by local skin redness, mild swelling and other symptoms. 2. Tinea pedis: more sweating in summer, and do not pay attention to foot hygiene, may induce fungal infection, caused by tinea pedis, can lead to itchy feet, accompanied by dryness, peeling. 3. Foot eczema: may be related to mental psychological factors, external stimuli and other factors, leading to the feet appear red papules, accompanied by itching, redness and swelling and other symptoms, serious cases will be there vesicles oozing, but also easy to secondary infection. In summer, itchy feet, accompanied by other abnormal symptoms, it is recommended to seek medical examination and treatment as soon as possible, to prevent the lesions continue to aggravate.