Nasal polyps (NP) are noncancerous growths within the nose or sinuses. Symptoms include trouble breathing through the nose, loss of smell, decreased taste, post nasal drip, and a runny nose. The growths are sac-like, movable, and nontender, though face pain may occasionally occur. They typically occur in both nostrils in those who are affected. Complications may include sinusitis and broadening of the nose.The exact cause is unclear. They may be related to chronic inflammation of the lining of the sinuses. They occur more commonly among people who have allergies, cystic fibrosis, aspirin sensitivity, or certain infections. The polyp itself represents an overgrowth of the mucous membranes. Diagnosis may be accomplished by looking up the nose. A CT scan may be used to determine the number of polyps and help plan surgery.Treatment is typically with steroids, often in the form of a nasal spray. If this is not effective, surgery may be considered. The condition often recurs following surgery; thus, continued use of a steroid nasal spray is often recommended. Antihistamines may help with symptoms but do not change the underlying disease. Antibiotics are not required for treatment unless an infection occurs.About 4% of people currently have nasal polyps while up to 40% of people develop them at some point in their life. They most often occur after the age of 20 and are more frequent in males than females. Nasal polyps have been described since the time of the Ancient Egyptians.
Theres also a significant increase in the blood volume during pregnancy, which tends to distend veins, causing valve dysfunction which leads to blood pooling in the veins. Moreover, later in pregnancy, the enlarged uterus can compress veins, causing higher vein pressure leading to dilated veins. Varicose veins that form during pregnancy may spontaneously improve or even disappear a few months after delivery. Life-style/occupation: Those who are involved with prolonged sitting or standing in their daily activities have an increased risk of developing varicose veins. The weight of the blood continuously pressing against the closed valves causes them to fail, leading to vein distention. Other acquired causes
Acquired telangiectasia, not related to other venous abnormalities, for example on the face and trunk, can be caused by factors such as

Cushings syndrome
Rosacea
Blepharitis
Environmental damage such as that caused by sun or cold exposure
Age
Trauma to skin such as contusions or surgical incisions. Radiation exposure such as that experienced during radiotherapy for the treatment of cancer, e.g., radiation proctitis
Chemotherapy
Carcinoid syndrome
Limited systemic sclerosis/scleroderma (a scleroderma sub-type)
Chronic treatment with topical corticosteroids may lead to telangiectasia. Spider angiomas are a radial array of tiny arterioles that commonly occur in pregnant women and in patients with hepatic cirrhosis and are associated with palmar erythema. In men, they are related to high estrogen levels secondary to liver disease. Tempi syndrome
Tobacco smoking
Cutaneous collagenous vasculopathy

Treatment
Before any treatment of leg telangectasia (spider veins) is considered, it is essential to have duplex ultrasonography, the test that has replaced Doppler ultrasound.