There are many reasons that lead to the symptoms of foreskin cracks in male patients, mainly including external stimulation, long foreskin, glans eczema and other reasons. 1. External stimulation: if patients wear unsuitable underwear for a long time or wash the foreskin for a long time with a high concentration of detergent, it may cause stimulation of the foreskin, and then the phenomenon of skin rupture, and then the patient may suffer from acute superficial glans phimosis. 2. Prolonged prepuce: If the patient’s prepuce is too long or even completely circumcised, it is easy to lead to incomplete cleaning, and it is very easy for bacterial growth, if the infection is not treated in time, it may appear in the corresponding parts of the inflammatory reaction, such as cracks in the prepuce. 3. glans eczema: chronic glans eczema can be caused by patients repeatedly scratching the foreskin skin cracks. There may also be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.