One brand of levonorgestrel pills was marketed as an ongoing method of postcoital contraception. It may be physiological during urination after coitus (postcoital urination). Postcoital bleeding is bleeding that occurs after sexual intercourse. Quingestanol acetate was used as an oral, once-a-month, or postcoital hormonal contraceptive. Benign causes of postcoital bleeding were associated with cervical erosion, ectropion, vaginitis and vulvovaginitis. Bleeding from hemorrhoids and vulvar lesions can be mistaken for postcoital bleeding. Postcoital bleeding can be due to trauma after consensual and non-consensual sexual intercourse. In some instances, postcoital bleeding may resemble menstrual irregularities. Those with postcoital bleeding had a higher risk of cervical dysplasia and cervical cancer. Some have proposed that birth control pills may cause postcoital bleeding. Postcoital bleeding can be one of the first indications of cervical cancer. Postcoital bleeding has been most studied in women in the US. Sweden also has a high self-reported rate of postcoital pill use.