Other Causes of bumps on skin:
o Basal cell carcinoma (skin cancer)
o Soft tissue sarcomas
o Intradermal cyst
o Polymorphic light eruption
o Rheumatoid nodules
o Sebaceous gland hyperplasia
o Sebaceous (epidermoid) cysts
o Splinters or other foreign bodies
o Squamous cell carcinoma (skin cancer)
o Metastatic carcinoma
o Infections/abscesses
o Granuloma annulare:
A benign chronic skin rash marked by one or more flat spreading ringlike spots with lighter centers especially on the feet, legs, hands, or fingers.
o Erythema Nodosum:
Small tender reddened nodules under the skin,as over the shin bones,accompanied by fever and transitory arthritic pains.
o Gout:
painful joints, deposits of urates in and around the joints, excessive amount of uric acid in the blood.
o Keratoacanthoma:
A rapidly growing skin tumor that occurs especially in elderly individuals, resembles a squamous cell carcinoma but does not spread, and tends to heal spontaneously with some scarring if left untreated.
o Neurofibromatosis:
An inherited disorder characterized by brown spots on the skin, neurofibromas of peripheral nerves, and deformities of subcutaneous tissues and bone, Recklinghausen's disease.
o Pyogenic granuloma:
A relatively common benign vascular lesion of the skin and mucosa that usually occurs in children and young adults as a solitary glistening red papule or nodule that is prone to bleeding and ulceration; called also Pregnancy tumor,pregnancy epuloids.