Generally speaking, it is normal for a 13-month-old baby to urinate 13 times a day. If there are also conditions such as excessive drinking and lethargy, a disease may be present. Blood or urine sugar can be checked to rule out diabetes. 13-month-old babies have already added complementary foods, kidney function is also gradually developed, and parents give more water every day. However, most 13-month-old babies will not hold their urine on their own, and the capacity of the bladder is still relatively small, when the urine fills up to a certain level in the bladder, it will be discharged on its own, so 13-month-old babies usually have 13 times a day to urinate is normal. However, if the symptoms of excessive urination are accompanied by corresponding clinical symptoms such as polydipsia, loss of appetite and wasting. Then there may be other related causes, such as uremia, diabetes mellitus, etc., which should be promptly consulted for a comprehensive examination and targeted treatment after the cause is clarified by the doctor. It is recommended that babies with the above conditions should seek prompt medical attention to avoid adverse consequences.