There is a corn kernel in the anal mouth, and there is a needle-like pain.

According to your description, your symptoms should be caused by hemorrhoids symptoms, hemorrhoids can be divided into internal hemorrhoids, external hemorrhoids and mixed hemorrhoids, you should currently belong to external hemorrhoids, if the needle-like more obvious, you can use hemorrhoids ointment for treatment. In addition, you can also go to the hospital for examination, discharge the possibility of other lesions.