Author Archives: Dr. Li

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About Dr. Li

I am a professional surgeon based in Beijing, China.

Main Symptoms of Supernumerary Nipple and Breast Malformations

Supernumerary nipple and breast malformations are extra breast parts that develop along the “milk line” before birth. They can show up anywhere from the armpit to the groin and range from tiny moles to full extra breasts. The commonest form is a single spare nipple—often a small, pink- or brown-tinted bump under the normal breast or in the armpit. It may look like a freckle and is easy to miss until hormone changes make it swell or tingle during periods, pregnancy, or breast-feeding. Some people have a complete extra breast with gland tissue, areola, and even a nipple that enlarges... Learn more

Main Symptoms of Breast-feeding Mastitis

Mastitis is a painful breast inflammation that most often hits nursing moms in the first three months after delivery. It can come on fast, so knowing the early signs helps you call for help before it turns into an abscess. The first thing women usually feel is a sore, heavy spot in one breast. It may start as a small tender lump or just a dull ache that gets worse when the baby nurses. The area quickly becomes red, warm, and swollen, and the redness can spread outward in a wedge-shaped patch. Many moms describe “flu” feelings: chills, body aches,... Learn more

Main Symptoms of Accessory Breast Tissue

Accessory breast tissue is extra breast gland or skin that didn’t disappear during normal development. It usually sits along the “milk line” from the armpit to the groin, most often under the arm or near the bra edge. The signs are straightforward. Many people notice a soft, puffy swell under the arm that enlarges during periods or pregnancy. It can feel like a small rubbery pad, sometimes with a tiny nipple or darkened skin in the center. Hormonal swings often make it tender, achy, or itchy—much like normal breasts. Some feel burning or pulling if the tissue swells quickly. If... Learn more

Main Symptoms of Breast Diseases

Breast problems range from harmless cysts to infections and cancer. Knowing the common warning signs helps you decide when to see a doctor. Most women notice a lump first. It may feel like a smooth, movable marble (a simple cyst), a firm rubbery knot (a fibroadenoma), or a hard, irregular mass that doesn’t budge. Lumps can be tender or completely painless. Pain itself—dull, heavy, or burning—is common with cysts, hormone changes, or mastitis, but it can also appear with tumors, so don’t ignore it. Skin changes are another clue. Look for redness, warmth, dimpling that looks like orange peel, or... Learn more

Main Symptoms of Breast Ductal Carcinoma

Breast ductal carcinoma starts inside the milk ducts and is the most common type of breast cancer. Knowing how it usually shows up can help you spot it early and see a doctor sooner. The first sign most women notice is a painless, firm lump in the breast. It may feel like a hard knot with uneven edges, and it doesn’t move around easily. The lump can be anywhere, but it’s often toward the under-arm side. Sometimes the skin over the lump dimples, looking like an orange-peel texture, or the nipple turns inward or points a different direction. You might... Learn more