It is also confused sometimes with Cleithrophobia (the fear of being trapped).Diagnosis of claustrophobia usually transpires from a consultation about other anxiety-related conditions. Certain criteria have to be met to be diagnosed with specific phobias. This criteria includes:
an interminable obstructive or excessive fear caused by the existence or anticipation of a specific situation
anxiety response when stimulus is exhibited; can result in panic attacks in adults or, for children, an outburst, clinging, crying, etc. acknowledgment by adult patients that their fear stems from the anticipated threat or danger
engaging in procedures to evade dreaded object or situation, or proneness to face the situation but with discomfort or anxiety
the persons evasion of the object or situation impedes with everyday life and relationships
the phobia is continuous, usually for 6 months or longer
symptoms cannot be ascribed to other underlying mental conditions, such as obsessive-compulsive disorder (OCD) or post-traumatic stress disorder (PTSD)

Scale
This method was developed in 1979 by interpreting the files of patients diagnosed with claustrophobia and by reading various scientific articles about the diagnosis of the disorder. Once an initial scale was developed, it was tested and sharpened by several experts in the field. Today, it consists of 20 questions that determine anxiety levels and desire to avoid certain situations. Several studies have proved this scale to be effective in claustrophobia diagnosis. Questionnaire
This method was developed by Rachman and Taylor, two experts in the field, in 1993. This method is effective in distinguishing symptoms stemming from fear of suffocation.
For experienced medical practitioners, the risk of perforation is one per 1,000 insertions or less. With postpartum insertions, perforation of the uterus is more likely to occur when uterine involution is incomplete; involution usually completes by 4–6 weeks postpartum. Special considerations apply to women who plan to breastfeed. If perforation does occur it can damage the internal organs, and in some cases surgery is needed to remove the IUD. Pregnancy complications: Although the risk of pregnancy with an IUD is very small, if one does occur there is an increased risk of serious problems. These include ectopic pregnancy, infection, miscarriage, and early labor and delivery. As many as half the pregnancies that occur in Mirena users may be ectopic. The incidence rate of ectopic pregnancies is approximately one per 1000 users per year. Immediate removal of the IUD is recommended in the case of pregnancy. No pattern of birth defects was found in the 35 babies for whom birth outcomes were available at the time of FDA approval. Infection: The insertion of the IUD does have a small risk of pelvic inflammatory disease (PID). Concurrent infection with gonorrhea or chlamydia at the time of insertion increases the risk of pelvic inflammatory disease. If PID does occur, it will most likely happen within 21 days of insertion. The device itself does not increase the risk of infection.