A lump on the eyeball may be either a pingueculum or a pterygium, explains Summit Medical Group. It may also be indicative of eye cancer, notes Bupa.
Both pingueculae and pterygia are types of small growths that occur on the conjunctiva, which is a clear membrane that lines the white portion of the eyeball and the underside of the eyelid, notes Summit Medical Group. A pingueculum may be clear, or it may have a yellowish pigmentation. This type of eye bump occurs most frequently on the side of the eye nearest to the nose. A pterygium contains small blood vessels and can cover a portion of the clear layer on the front of the eye, called the cornea, if it grows large enough.
Potential causes of pingueculae and pterygia are exposure to ultraviolet rays, wind, dust and harmful chemicals, according to Summit Medical Group. They usually do not produce any symptoms and do not require treatment; however, they may cause redness, burning, itching, blurry vision, eye watering, dry eyes or a gritty sensation. If a pterygium grows large enough to affect vision, it may require surgical removal.
Eye cancer sometimes does not produce any symptoms, making it important to receive regular eye exams, according to Bupa. Some potential symptoms are vision impairment, a dark spot on the iris of the eye, a bulging eyeball, watering and seeing spots or light flashes.Learn More
A lump in the neck can signal several medical conditions, such as enlarged lymph nodes due to a bacterial or viral infection, acne, autoimmune disease, thyroid disorder, tonsillitis, sebaceous cysts, allergies or cancer, according to Healthline. Doctors can diagnose neck lumps according to the existence of accompanying symptoms.Full Answer >
Leg lumps can be caused by abscesses, boils, bone infections, warts, moles, lipomas, bone cancer, septic arthritis, insect bites, hematomas and broken bones, according to Healthgrades. Additional causes of leg lumps include cellulitis, osteoarthritis, gout, erythema nodosum, lymphoma, melanoma, psoriatic arthritis and rheumatoid arthritis.Full Answer >
A lump on the side of the knee could be a result of an injury, swollen or torn ligaments or a cartilage tear, according to WebMD. Knee injuries can cause fragments of the bone or cartilage to chip and get stuck in the joint, causing swelling and lumps.Full Answer >
Bumps or lumps on the roof of the mouth can be noncancerous or cancerous. The most common bony outgrowths on the roof of the mouth are called palatal tori and occur in 20 to 30 percent of the population, according to Dr. William M. Bennett in a 2013 article in The New England Journal of Medicine.Full Answer >