Skin Diseases, Conditions & Disorders| NIAMS
网页2023年4月3日 · It is a long-term disease that causes reddened skin and pimples, usually on the face. It can also make the skin thicker and cause eye problems. Scleroderma. Scleroderma causes areas of tight, hard skin, but can also harm your blood vessels and organs. Learn the causes and treatments of this skin disease. Vitiligo.
Psoriasis Types, Symptoms & Causes | NIAMS
网页2024年8月5日 · Types of Psoriasis. There are different types of psoriasis, including: Plaque psoriasis. This is the most common kind, and it appears as raised, red patches of skin that are covered by silvery-white scales. The patches usually develop in a symmetrical pattern on the body and tend to appear on the scalp, trunk, and limbs, especially the elbows ...
Common Causes of Back Pain - Types & Treatment | NIAMS
网页2023年9月28日 · Mechanical/Structural Problems. Back pain can happen when mechanical or structural problems develop in the spine, discs, muscles, ligaments, or tendons in the back, or compress a nerve. Sprain: an injury to the ligaments that support the s pine (which connect the different bones together), often occurring from twisting or lifting improperly.
Psoriasis Basics: Overview, Symptoms, and Causes
网页2024年8月5日 · Patches of thick, red skin with silvery-white scales that itch or burn. Dry, cracked skin that itches or bleeds. Thick, ridged, pitted nails. Poor sleep. The symptoms of psoriasis tend to come and go. You may find that there are times when your symptoms get worse, called flares, followed by times when you feel better (remission).
All Diseases and Conditions | NIAMS
网页2019年7月22日 · Bone has many important jobs in the body. Bone provides a strong framework to support and protect the soft organs (such as the brain, heart, and lungs) from injury and work with muscles to hold up the body when we stand and move. NIAMS focuses on arthritis, musculoskeletal & skin diseases. Find …
Atopic Dermatitis Treatment, Symptoms & Causes | NIAMS
网页2023年5月25日 · Atopic dermatitis causes the skin to become extremely itchy. Scratching leads to further redness, swelling, cracking, “weeping” clear fluid, crusting, and scaling. In most cases, there are periods of time when the disease is worse, called flares, followed by periods when the skin improves or clears up entirely, called remissions.
What is Acne? Definition & Types | NIAMS - National Institute of ...
网页2023年6月22日 · Types of Acne. Acne causes several types of lesions, or pimples. Doctors refer to enlarged or plugged hair follicles as comedones. Types of acne include: Whiteheads: Plugged hair follicles that stay beneath the skin and produce a white bump. Blackheads: Plugged follicles that reach the surface of the skin and open up.
What Is Scleroderma? Symptoms & Causes| NIAMS
网页2023年6月22日 · Overview of Scleroderma. Scleroderma is an autoimmune disease that causes inflammation and fibrosis (thickening) in the skin and other areas of the body. When an immune response tricks tissues into thinking they are injured, it causes inflammation, and the body makes too much collagen, leading to scleroderma. Too …
What is Ichthyosis? Definition & Causes | NIAMS
网页Ichthyosis refers to a group of skin disorders that lead to dry, itchy skin that appears scaly, rough, and red. The symptoms can range from mild to severe. Ichthyosis can affect only the skin, but some forms of the disease can affect internal organs as well. Most people have a genetic form of ichthyosis that results from a changed gene, often ...
Raynaud's Phenomenon or Disease Treatment & Types | NIAMS
网页Raynaud’s phenomenon is a condition that causes the blood vessels in the extremities to narrow, restricting blood flow. The episodes or “attacks” usually affect the fingers and toes. In rare cases, attacks occur in other areas such as the ears, tongue, or nose. An attack usually happens from exposure to cold temperatures or emotional stress.