Red dots on the top of the glans and painful urination may be caused by prepuce glansitis, urinary tract infection or allergy. 1. Hirschsprung’s disease: When you don’t pay attention to the hygiene in daily life, it can cause the foreskin area to harbor dirt and dirt, which will lead to hirschsprung’s disease. After the glans is stimulated by inflammation, red spots on the glans and painful urination may appear. 2. Urinary tract infection: when having unclean sex, bacteria can enter the genitals along with the urethra, which may also affect the urethra and glans, causing the patient to have red spots on the glans as well as tingling in the urine, which may be accompanied by frequent urination and urinary urgency. 3. Allergy: Some male patients’ glans may be allergic to irritating substances such as soap or laundry detergent when they come into contact with the glans, inducing the above symptoms. Red dots on the glans and painful urination may also be caused by other reasons, such as ureteral stones, etc., should go to the hospital in time to clarify the cause of the disease, and choose the appropriate method of treatment.