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Odd lumps near or around the hip bone can be very distressing. They may feel like small bumps, or tubes that are a few centimeters in length. These localized lumps are sometimes painless, thus most people avoid getting them checked out. But consulting your doctor should always be in your best interest, especially when the cause of these lumps could mean a lot of different things.


The average time period between successive bowel movements varies among individuals. Constipation is said to occur when the normal length of time between two bowel movements becomes prolonged. It also refers to difficult or strained bowel movements, when passing stool becomes difficult due to hardening of the fecal matter. On average, if a person does not pass stool for three consecutive days, he or she is said to be constipated. A small lump could be indicative of fecal matter stuck somewhere near the hip bone.

There are many ways to treat constipation, depending on its cause. Increased daily intake of water and foods high in fiber usually provide relief. Exercise and a change in routine may help as well. Certain medicines also cause constipation, and your doctor might suggest alternatives. In extreme cases, doctors prescribe stool-softeners or laxatives, but these should be used cautiously and temporarily.


The cause of a mystery lump might also be an infection, especially if there is pain as well. Two common conditions that are associated with such symptoms include:

  • Abscess

An abscess is a raised mass of infection that is generally enclosed in a pink or red area. It occurs as a result of the body's immune system trying to fight an infection. White blood cells accumulate in the damaged tissue, forming pus (collection of living and dead cells, along with fluids, dead tissue, and foreign matter). Abscesses are common around the anal area and at the base of the hip-bone. They are generally painful.

Depending on the extent of infection, antibiotics or surgery will be advised by your doctor. Maintaining proper hygiene also prevents abscess formation. Never attempt to rupture or drain an abscess, since this may spread the infection to nearby tissues. It might also cause damage to your blood vessels.

  • Cellulitis

Cellulitis is a rather common and serious skin illness. It is the result of a bacterial tissue infection. The infected area appears red, swollen, and tender. Common target areas are legs, arms and anal regions. Most conditions are mild and take a few days or weeks to heal. However, if left undiagnosed or untreated, cellulitis may become severe and progress to other parts of the body, causing sepsis and severe illness.

Mild cellulitis may be treated with antibiotics. In extreme cases, hospitalization is required. Seek proper medical advice regarding skin care to avoid recurrence.

Lipoma (Fat accumulation)

Lipomas are generally the most common types of non-cancerous tissue growths. These lumps are an accumulation of fat cells that take the form of a thin, fibrous capsule. They are found just underneath the skin and can occur almost anywhere on the body. They are soft and rubber-like to touch and are mostly painless.

Usually, lipomas require no treatment. However, in case of infection, pain or discomfort, the lipoma may be excised. Liposuction and steroid injections are alternative treatments.

Other causes that could explain such lumps include:

  • Boils
  • Reactive lymph nodes
  • Muscular spasms
  • Calcification

Less common causes include:

  • Metastasis from a bone tumor
  • Episacral lipoma
  • Iliac crest pain syndrome
  • Multifidus triangle syndrome
  • Lumbar fascial fat herniation

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