Painful lumps under the skin are usually caused by injuries or infections, states MedlinePlus. These lumps include boils, which are caused by infected hair follicles, and carbuncles, which are groups of boils, according ... More » Health Pain & Symptoms

The main cause of small lumps under the chin is swollen lymph nodes, according to HealthTap. The nodes may be enlarged because of problems in the immediate area, such as with the teeth or ears. More » Health Pain & Symptoms

Numerous possible causes for lumps in any part of the neck include enlarged lymph nodes, cysts, infections and thyroid gland swelling, according to MedlinePlus. Lumps are sometimes indicative of various types of cancer, ... More »

Causes of loss of taste include flu, Bell's palsy, the common cold, nasal infections and salivary gland infections, states MedlinePlus. Other possible causes include ear surgery, mouth dryness, heavy smoking, inflamed gu... More » Health Pain & Symptoms

Causes of facial swelling include infections, allergies, and trauma or injuries, according to Healthgrades. Medical conditions such as facial cancer, obesity, heart failure, kidney failure and hereditary angioedema can a... More » Health Pain & Symptoms

Common causes of swollen testicles include hernias, infections, injuries and certain medical treatments, including surgery in the groin area, according to MedlinePlus. Testicular cancer and congestive heart failure may a... More » Health Pain & Symptoms

A metallic taste on the tongue may result from infections, oral injuries, medications, and certain diseases and disorders, according to Healthgrades. The condition may also occur due to advanced age, smoking, dehydration... More »