What started out as a "tiny little brown line" on one woman's fingernail led to a rare, potentially life-threatening medical condition, one that she's now trying to help others catch early.

If you see this line on your fingernail, see your doctor immediately: experts by: Jeremy Tanner. Posted: May 11, 2025 / 09:06 AM EDT. Updated: May 11, 2025 / 09:06 AM EDT.

What started out as a "tiny little brown line" on one woman's fingernail led to a rare, potentially life-threatening medical condition, one that she's now trying to help others catch early.

What started out as a "tiny little brown line" on one woman's fingernail led to a rare, potentially life-threatening medical condition, one that she's now trying to help others catch early.

If you see this line on your fingernail, see your doctor immediately: experts by: Jeremy Tanner. Posted: May 11, 2025 / 07:49 AM PDT. Updated: May 11, 2025 / 07:49 AM PDT.

If you see this line on your fingernail, see your doctor immediately: experts by: Jeremy Tanner. Posted: May 11, 2025 / 08:06 AM CDT. Updated: May 11, 2025 / 08:06 AM CDT.

What started out as a “tiny little brown line” on one woman’s fingernail led to a rare, potentially life-threatening medical condition, one that she’s now trying to help oth… ...