Eating watermelon generally does not cause serious urinary frequency, and urinary frequency caused by eating watermelon, no special treatment; but if you suffer from cystitis, urethritis and other diseases, after eating watermelon caused by serious urinary frequency, according to the cause of the disease need to take general treatment, drug treatment and so on. 1. Eating watermelon belongs to the fruit with more water content, eating more may cause frequent urination, which is a normal performance, but generally does not cause serious frequent urination. About the situation, no special treatment, observation can be. 2. However, if the frequency of urination is more serious, other causes should be considered. Such as inflammatory infections of the urinary system (urethritis, cystitis), etc., can be treated with drugs such as Tolterodine and Mirabelone as prescribed by the doctor. If the frequent urination is caused by bacterial infection, oral antibiotics should also be taken to reduce inflammation, such as ceftriaxone and azithromycin. If it belongs to non-bacterial infection caused by frequent urination, you can take oral sodium bicarbonate, potassium citrate drugs to reduce the acidity of urine. 3. In addition, you need to pay attention to urethral hygiene, insist on washing with warm water. If serious urinary frequency occurs after eating watermelon, it is recommended to consult a doctor as soon as possible, under the guidance of the doctor for treatment. The above drugs need to be used under the guidance of a professional physician, to avoid blind use of drugs, so as not to aggravate the condition.