Does a Breast Biopsy Marker Clip Stay in Permanently?

Usually, yes. In almost all cases, a breast biopsy marker clip is intended to stay in your breast permanently ^[1]. If your doctor confirms that your biopsy result of breast fibrosis completely matches what was seen on your imaging (a medical concept called concordance), you typically will not need surgery to remove the benign tissue, and the clip will remain in place ^[1]. The presence of the clip does not change your routine care by itself, and leaving it behind is the standard, safest medical practice ^[1].

Why is a Clip Left Behind?

During a breast biopsy, a doctor removes a tiny sample of tissue. Because breast tissue heals quickly, it can become very difficult to locate that exact same spot on future mammograms or ultrasounds ^[1].

To solve this, doctors place a tiny marker clip—often the size of a sesame seed—into the biopsy site ^[1]. This clip acts as a permanent landmark ^[1]. If you ever need follow-up imaging, the radiologist uses the clip alongside your past images and clinical history to locate the area that was biopsied ^[1]. The clip itself is simply a marker; it does not treat the fibrosis, nor does it guarantee that a future lump in the same area is harmless.

Are Biopsy Clips Safe?

Most breast biopsy clips are designed to be highly biocompatible and are generally left in the body for a patient’s lifetime with minimal risks ^[2]. They are typically made from medical-grade metals (such as titanium or stainless steel), and some are surrounded by small bio-absorbable plugs that safely dissolve over time ^[3].

Most patients cannot feel these tiny markers in their breast, and they generally do not set off airport metal detectors ^[2]. Normal post-biopsy soreness is expected, but you should contact your doctor if you experience warning signs of an unusual complication, such as increasing redness, warmth, swelling, severe or worsening pain, drainage, or a new persistent lump ^[2].

Can I Still Get an MRI?

Most modern breast biopsy clips are labeled as MR Conditional ^[4]. This means they are safe to go into an MRI scanner, but only under specific scanner conditions, such as a magnetic strength of up to 3 Tesla (which covers most standard hospital MRIs) ^[4].

Because clips are made of metal, they can cause a small MRI artifact ^[5]. An artifact is a visual distortion on the scan. While this distortion actually helps radiologists spot the clip on the MRI, it can also slightly obscure the breast tissue immediately surrounding the clip ^[5]. Radiologists are trained to account for this when interpreting your scan ^[5].

Always tell your technologist about your prior biopsy and the presence of a marker clip before any MRI or mammogram ^[6]. You should provide a copy of your biopsy report so the imaging center can verify the exact manufacturer’s MRI safety conditions for your specific clip ^[4][7].

Do They Ever Need to Be Removed?

Marker clips rarely require a separate procedure for removal ^[7]. They are usually only removed if you happen to need a surgical excision in that exact area for another medical reason ^[7].

Sometimes, a clip can shift slightly within the breast—a process known as clip migration ^[8]. In one study evaluating stereotactic biopsies, about 13% of clips migrated a short distance (at least 1 centimeter) from the original biopsy cavity ^[8]. This migration generally happens soon after the biopsy procedure rather than drifting endlessly over years ^[8]. Even if a clip shifts, your radiology team can still effectively monitor your breast health by using other tissue landmarks and comparing your new scans to your immediate post-biopsy mammogram ^[8].