What should I do if I am harassed by my ex-girlfriend's SMS?

First, it is not recommended that you call the police immediately. Because after all, it was your ex-girlfriend who had sex. People can't do things too well, which is not conducive to solving things. It's best to communicate with her, or ask someone to communicate with her to properly solve this matter. Second, if not, I suggest you change your mobile phone number or blacklist her number for processing. Third, if it still doesn't work, warn her once and make it clear to her that if she continues to harass, call the police. Fourth, when calling the police, it is very simple. Just turn out the SMS, and the police will take photos to fix the evidence, so that she can be punished.

Item (5) of Article 42 of the Law on Public Security Administration Punishment stipulates that anyone who repeatedly sends (other) information and interferes with the normal life of others shall be detained for not more than five days or fined not more than 500 yuan; If the circumstances are serious, they shall be detained for not less than five days but not more than ten days, and may also be fined not more than 500 yuan.