Bleeding for almost a month

Hello mommies! This is super sensitive but I really need to ask, can abortion cause bleeding for a month? Because this one person who I really care about has been experiencing bleeding for almost a month and she’s not telling me why. She doesn’t really want to talk about it but I’m really concerned and scared. I don’t know if she is pregnant or not. I have a feeling that she had an abortion , but obviously she will not tell me. Please help me, and can you also please tell me what are other causes of bleeding for that long. I also want to confirm if she’s doing something I don’t know.#pleasehelp #bantusharing