Period spotting is typically pink, brown, or dark red, depending on how long the blood has been in your body before it exits. Fresh spotting tends to look pink or light red, while older blood that has had time to interact with oxygen turns brown or nearly black. The color alone can tell you a lot about what’s happening in your cycle.
Spotting is different from a full period in one key way: volume. A period requires a pad or tampon to manage the flow, while spotting produces only small amounts of blood, often just a few drops on underwear or toilet paper.
Pink Spotting
Pink is one of the most common spotting colors. It happens when a small amount of fresh red blood mixes with your normal clear or milky vaginal discharge, diluting the color. You’ll often see pink spotting right at the very start of your period, before the flow picks up, or at the tail end as it tapers off.
Pink spotting can also appear mid-cycle around ovulation. A brief shift in hormone levels as your body releases an egg can trigger light bleeding that mixes with cervical fluid. This usually shows up about 14 days after the start of your last period and resolves within a day or two. When estrogen levels are low for any reason, the lining of the vagina and uterus becomes thinner and more fragile, making pink spotting more likely even from mild friction or irritation.
Brown or Dark Brown Spotting
Brown spotting is simply old blood. When blood takes longer to travel out of the uterus and through the vagina, it gets exposed to oxygen along the way. This process, called oxidation, transforms the color from red to brown, the same way a cut on your skin darkens as it dries. The slower the blood moves, the darker it gets.
You’ll most commonly notice brown spotting in the last day or two of your period, when the uterus is passing its final traces of built-up lining. It can also appear a day or two before your period officially starts, as small amounts of older blood begin to shed ahead of the main flow. Brown spotting between periods is usually harmless, but if it becomes a regular pattern outside your cycle, it’s worth paying attention to.
Bright Red Spotting
Bright red means the blood is fresh and moved quickly from the uterus out of your body without much time to oxidize. During a full period, bright red blood is most common on the heaviest days. As spotting, bright red drops can show up between cycles from a variety of causes: hormonal shifts, irritation to the cervix, or the start of a new period announcing itself.
Spotting after sex is a common example of bright red spotting. It affects up to 9% of people who menstruate and is usually caused by friction, insufficient lubrication, or minor irritation of the cervix. Cervical polyps, which are small growths (typically 1 to 2 centimeters) on the opening of the cervix, can also bleed easily when touched and produce bright red spotting.
Dark Red or Black Spotting
Dark red spotting appears when blood has pooled in the uterus for a while before being shed. It’s a step further along the oxidation spectrum than brown. Truly black spotting is just the extreme end of this process, where blood has sat long enough to darken completely. It sometimes shows up at the very beginning or end of a period and is generally not a concern on its own.
Colors That Signal Something Else
Not every color falls within the normal pink-to-brown range. A grayish-white discharge with a foul smell is a hallmark of bacterial vaginosis, a common vaginal infection. A greenish-yellow or frothy discharge points toward trichomoniasis, a sexually transmitted infection. Neither of these is typical period spotting, and both need treatment.
Orange-tinged spotting can sometimes occur when blood mixes with discharge affected by an infection. If the color looks off and comes with itching, a strong odor, or burning, the cause is more likely an infection than normal cycle bleeding.
Spotting From Birth Control
Hormonal birth control is one of the most common reasons for spotting between periods. With IUDs, irregular spotting and bleeding are typical in the first few months and usually improve within 2 to 6 months. With the implant, whatever bleeding pattern you develop in the first 3 months tends to be the pattern you’ll have going forward. The color of breakthrough bleeding follows the same rules as any other spotting: pink or red when fresh, brown when older.
Implantation Spotting vs. Period Spotting
If you’re trying to conceive or think you might be pregnant, the color of your spotting matters. Implantation bleeding, which occurs when a fertilized egg attaches to the uterine lining, is typically pink or brown and very light. It usually happens 10 to 14 days after ovulation and lasts no more than about two days. The flow resembles vaginal discharge more than a period.
The key differences: implantation bleeding does not turn bright red, does not get heavier over time, and does not contain clots. If your spotting starts light and pink but then deepens to red and increases in volume, that’s much more likely the beginning of your period than a sign of pregnancy.
What the Timing Tells You
Color is one piece of the puzzle, but when spotting occurs within your cycle adds important context. Light pink or faintly red spotting around the middle of your cycle is often ovulation bleeding, which is brief and painless. Spotting in the days right before your period, usually brown, is just an early trickle of menstrual blood. Spotting that happens unpredictably between cycles and keeps recurring, especially if it’s bright red or accompanied by pain, could point to cervical polyps, hormonal imbalances, or other conditions worth investigating.
Irregular spotting after menopause is always worth noting. Lower estrogen levels thin the vaginal and uterine lining, making even minor irritation enough to cause pink, brown, or red spotting.