Spotting is light bleeding that occurs outside of your regular menstrual period (usually just a few drops of blood or light pink or brownish discharge [1][2]). But if you’re feeling stressed or experiencing heavy bleeding or additional symptoms (like pain), make an appointment with a healthcare provider. They might do a pelvic exam, ultrasound, or some blood tests to figure out what’s up [1][3].

Color Decoding

Spotting can come in a variety of colors depending on how long the blood has been in your uterus. Fresh blood is typically bright red, while older blood that’s had time to oxidize can appear brown or darker. Pink spotting usually occurs when blood mixes with cervical fluid, diluting the color [2]. But if you’re feeling stressed or experiencing heavy bleeding or additional symptoms (like pain), make an appointment with a healthcare provider. They might do a pelvic exam, ultrasound, or some blood tests to figure out what’s up [1][3].

Hormonal Changes

• Birth Control: Starting or changing birth control can lead to spotting as your body adjusts to new hormone levels [1][2].
• Hormonal Imbalance: Conditions like PCOS can disrupt your hormones, causing unexpected spotting [2].

Ovulation

• Around the middle of your cycle, some women experience spotting when they ovulate due to brief hormone fluctuations [2].

Pregnancy

• Implantation Bleeding: Spotting can occur when the embryo attaches to the uterus, typically around a week or two after conception [2].
• Complications: Spotting can also indicate pregnancy-related issues. If it's heavy or accompanied by pain, consult your doctor [2][3].

Infections

• STIs and PID: Infections like chlamydia or pelvic inflammatory disease can cause spotting, often with other symptoms like unusual discharge [2].

Uterine Issues

• Fibroids or Polyps: Non-cancerous growths in the uterus can result in irregular bleeding [2][3].

Other Factors

• Stress: High stress levels can impact your cycle, sometimes leading to spotting [2].
• Medications: Certain medications, especially blood thinners, may cause light bleeding [2][3].

Using a period tracking app (like Stardust!) to track your symptoms can make it easier to manage and understand your cycle by helping you identify patterns, potential triggers, and underlying causes. We also provide detailed records that can improve communication with healthcare providers for more accurate diagnosis and treatment.

[1] Streicher, Lauren, MD. “Spotting Between Periods? Here Are the Possible Causes, According to an OB/GYN.” Prevention, 9 Sept. 2020, https://www.prevention.com/health/a33536083/spotting-between-periods/.

[2] Cornforth, Tracee. “Causes of Vaginal Bleeding Between Periods.” Verywell Health, medically reviewed by Renita White, MD, 18 Apr. 2025, https://www.verywellhealth.com/bleeding-between-periods-3520522.

[3] Cornforth, Tracee. “Vaginal Bleeding Between Periods: Causes, Prevention & When to Seek Help.” Healthline, updated 18 Apr. 2025, medically reviewed by Renita White, MD, https://www.healthline.com/health/vaginal-bleeding-between-periods.