Why is there a hard black lump under my skin?

A dermatofibroma is a small, hard bump that grows under your skin. This skin lump is harmless, but it might itch or hurt at times. Though it’s not clear what causes them, some people report having had splinters, insect bites, or other minor trauma at the spot where they develop.

Why do I have a black lump on my finger?

Common warts are small, grainy skin growths that occur most often on your fingers or hands. Rough to the touch, common warts also often feature a pattern of tiny black dots, which are small, clotted blood vessels. Common warts are caused by a virus and are transmitted by touch.

Why do I have lumps under my skin on my fingers?

A ganglion cyst usually looks like a lump or bump on your wrist, finger or foot. This lump may look symmetrical (round) or misshapen (more like an oval). A ganglion cyst sits just below the skin’s surface. It may look like a bubble blown from a joint.

What is this lump of skin on my finger?

Finger lumps commonly occur in the joint area and are indicative of arthritis-related conditions. Traumatic causes of finger lumps range from bug bites to severe injuries. Both benign and malignant tumors of the skin, soft tissues, or bone can appear as finger lumps.

Are black moles cancerous?

Benign moles are usually one uniform color throughout. They can be brown, or black or pink, as long as they are one single color. Cancerous or pre-cancerous moles are multicolored. If the mole has more than one color, get it looked at.

Are melanomas black?

Melanoma often contains shades of brown, black, or tan, but some can be red or pink, such as the one shown here.

What is a mucoid cyst on finger?

Mucous cysts are small, fluid-filled sacs that form on the fingers and usually develop in patients 50 to 70 years of age. The mucous cyst usually appears at the joint nearest to the fingernail, called the distal interphalangeal (DIP) joint, and can be found on the thumb or on any of the other fingers.