What would cause brown spotting 3 weeks after your period?

Brown spotting three weeks after your period can have several potential causes. Some of the more common reasons include:

Implantation bleeding: If you are of reproductive age and sexually active, implantation bleeding can occur when a fertilized egg implants in the lining of the uterus. This usually happens around 10 to 14 days after ovulation, which can be about three weeks after your period ends. Implantation bleeding is typically light and may last for a few days.

Ovulation: Ovulation, which is the release of an egg from the ovary, can sometimes cause light bleeding or spotting. This usually occurs around 14 days before the start of your next period, but it can vary from person to person. Ovulation bleeding is typically light and may last for a day or two.

Hormonal changes: Hormonal imbalances can cause irregular bleeding, including spotting between periods. This can occur for various reasons, such as stress, thyroid issues, or hormonal imbalances caused by birth control or other medications.

Infection: Infections of the reproductive tract, such as bacterial vaginosis or sexually transmitted infections (STIs), can also cause spotting between periods. These infections may be accompanied by other symptoms, such as vaginal itching, burning, or foul-smelling discharge.

Other underlying medical conditions: In some cases, spotting between periods can indicate an underlying medical condition, such as uterine fibroids, polyps, or certain types of cancer. These conditions are usually accompanied by other symptoms, such as heavy or prolonged bleeding, pelvic pain, or unexplained weight loss.

It's important to note that any changes in your menstrual cycle should be discussed with a healthcare professional for proper evaluation and diagnosis. If you are experiencing brown spotting three weeks after your period and are concerned about the cause, it is recommended to consult with your doctor for an accurate diagnosis and appropriate treatment, if necessary.