Groin cracking and stinging may be caused by a skin condition such as eczema or atopic dermatitis, or by skin damage caused by repeated irritation. Groin cracking and stinging may be caused by a skin condition such as eczema or atopic dermatitis. When eczema involves the groin, oozing, erosion, cracking can be formed, causing pain and even tingling sensation; and patients with heterogeneous allergic diseases, often manifested as atopic dermatitis, can be combined with asthma, pollen allergy, and other allergic diseases, often manifested in the skin as eczema-like changes, the same will occur in the groin local skin cracking skin lesions manifestation. In addition, the inguinal area is hidden from the perineal area, the anus is closer, there is moisture, airtight and other conditions, the skin here is susceptible to pathogens such as bacterial or fungal contamination, if the patient does not pay attention to personal hygiene, resulting in the skin here appear impregnated, vesiculation, in the long run will form a chronic ulceration, which will result in cracking accompanied by tingling pain. Therefore, when the groin cracking and stinging pain should be timely to the dermatology department, under the guidance of the doctor for appropriate treatment.